Bennett SLT10 Self-Leveling Tab System f/Boats 17'-20'

I have an 18' CC that I had just bought without a test drive (not the best idea, I know). Anyways, I took it out several times and each time... no matter how flat the water was, this thing would just be porpoising more than a dolphin. It was horrible. Like horrible enough I was thinking of selling the boat and getting another one as this made me not even want to take it out any more. Did some research and saw to add some trim tabs. I landed on these as the price couldn't be beat. I was just hoping it would help some. I took the boat out yesterday, and that thing ran the smoothest in 1-2' as a boat 10' larger than mine would. I was amazed! It also got on a plane faster and easier than before, so added bonus there! I did call the helpline when I installed them for a question, whoever I spoke to was knowledgeable and helped out so customer service is A++. If you're hesitate on buying these, don't be! Easy to install and they work better than I could have imagined!

I bought these hoping for any change in my boat planing and the boat porpoising. Better then I had hope. Just on the medium setting the nose came down and my boat came out of the water in a 3rd of the time and stopped the porpoising all together. Took all my frustration away. I recommend these to anyone that has these same problems.

Wow! These are amazing. Ive been dealing with a porpusing issue for years with my 1756sc Triton, if you trim up the slightest bit it would go to hopping and slapping the water. These tabs totally fixed the issue and it pops up on plane. Also makes the boat more stable in reverse. Highly recommend 👌

Game changer! I don't usually write reviews unless the item is either really awesome or really crappy. Thankfully this one is totally awesome!! I have a 16' aluminum fish/sport boat with a 90hp and rear fuel tank, this is a new to me boat and obviously the former owner had issues with keeping the front down and porpoising seeing how he had bricks lined in bow under the seats! And evenso, running the boat at any speed above 15-20mph the bow would violently bounce and slap the water no matter the motor trim. Like the prior owner I was ready to sell the boat! (Almost) With a little research I came across these little units and finally decided to pull the trigger. Not too bad to install, I decided to use rivets rather than bolts as access to the inside would have been a nightmare. Now to the maiden voyage! OMG, what a wonderful difference! No bow rise or porpoising whatsoever! I went from a nightmare dangerous experience to a brand new enjoyable boat! THANK YOU BENNETT!!

My 642 is stern-heavy. It has a 4.3L fuel injected V-6 that makes a reported 220 hp, and I have dual batteries, a 13 gallon water tank, and some additional gear. With two folks onboard the stock boat with no tabs planed just fine - about 5-10 seconds. With four folks and the stock three-blade 19p prop, the boat would take 20 seconds or so to plane. With six folks I'd have to get two persons to move up front into the cuddy, and then it'd take 20-30 seconds or sometimes even longer. I switched to a four-blade 18p prop and that helped a lot, making it possible to plane in about 15 seconds with four folks, but six were still a challenge and we always had to move folks around. The other day, with these 10" tabs and their 90-lb springs, I was able to plane faster with four persons than in the past. I was even able to plane with 7 folks after moving folks around. ALSO -- huge benefit -- I can now actually trim up to 3/4 trim on a plane without porposing. That's something I could not do at all, even with just two on board in the stock configuration. The boat seems to cut through waves better. On my boat, the effects are not as significant as the videos seem to imply. There are several reasons for the 4 stars. One is that I ordered through a third party vendor and not all the parts were present in the box when it arrived. The order arrived about 7 days after it said it would - then I had to call and get the third party vendor to ask Bennett to deliver the parts to me directly, which they did, but it took another week or so. Over three weeks after ordering I finally had trim tabs to install. The service was good - super nice people - but the execution was subpar. Another reason for the four stars -- the tabs helped but didn't cure my issues. I will be placing the tabs on the highest setting before my next outing -- but best I can tell, they helped with slow speed stability, trimming, and planning to some degree. But they also feel like not nearly enough. It's like my boat is too big and the tabs are having subpar effect. I'll try and chime back in after I go to the highest setting. What I may need, at the end of the day, are the hydraulic or electric tabs that are fixed and not sprung. Although some say they can install these tabs in 20 minutes, I personally set aside about four hours to install these. The first hour was just me contemplating the absolute best spots for installation. The second hour was me marking and measuring holes several times to ensure accuracy. I installed the lower hinges for each tab in hour three, using lots of 3M 4200, and that's just half the battle. It's great that folks say this process is quick -- but my advice would be -- TAKE YOUR TIME! Do it right. Use a lot of sealant. Use good sealant. I checked with my dealer about my lifetime hull warranty and if installing the tabs voids that. They said it would not void the warranty unless the source of the breakage was determined to be related to the tabs. In other words -- if you install incorrectly and the interstitial walls of your transom fill with water and rot your wood, etc., don't count on getting that covered under warranty. Also, if your transom is rotting and you happened to install trim tabs correctly, you're probably out of luck there, also. Having said all this -- I still have one more notch and these tabs did help. I consider myself someplace on the spectrum of the natural progression every boater takes as they fine tune their ride to match their lakes, style of boating, passengers, etc. It might be that I need to go with a fixed position tab, but if 90 percent of my woes are resolved through the active tab system, I'm okay with that. I remain hopeful these tabs are the answer. If they're not, they were worth it as part of the progression. Hope this helps!

The boat handling characteristics changed a lot. When coming up on plane the bow stayed down, even at slow throttle and handles much better in choppy conditions. I should have done this sooner. This has been the best accessory that I have added to the boat. The installation process took 2 hours to do the first tab and 25 minutes to do the second. When following the install directions I used the recommended 3M Marine Adhesive Sealant to aid in the assembly process, worked well. I recommend that before you drill use a center punch. The recommended drill sizes worked very well just be careful not to go too deep on the tab flange screw holes. Put masking tape on the drill to the depth you want too and go slow and perpendicular to the surface. When attaching the top flange of the shock, the flange will be at an angle to the transom surface, you will only be able to mark the bottom 2 holes. Make a cardboard template of the flange holes on the bench and use the template to mark the top hole and check the location of the bottom holes. You only get 1 chance to get these holes right. Use a drill motor, with the proper screw bit, to aid you in the assembly of these 3 screws. 9-2025 After owning these for about 10 months (40 underway hours) the port trim tab shock failed. I contacted the manufacturer and was able to get a replacement for FREE. The process took about a week, I sent them the broken part and they sent me a new replacement part at no cost. They are a great company to work with. Another recommendation. When adjusting the trim tab fastener location, where the shock attaches to the plate, fully extend the shock.

Not very hard to install. Made a noticable change to performance. For the better

Installed on a Bayliner 195 Capri. These are fantastic. No Bow rise, very smooth ride at midrange rpm, and no lost of speed at wide open throttle!!!