Bennett SLT6 Self-Leveling Tab System f/Boats up to 16'

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 was having issues with porpoising. I put these on the back of a 16 foot flat bottom and it immediately got rid of the porpoising a lower speeds and the hole shot to get on top is fantastic!

I have a 17 ft boat with 115 hp four-stroke, helped with planning out of the water, helped a.little with boat porpiosing at full throttle. Still hops a little. Cheaper than new prop and pretty easy install. I also like that I can pin them up. Maybe lost 1 or 2 mph? Hard to tell.

After doing plenty of research and finally ordering these I’m glad I did. Installed on my ‘97 VIP Viva 184 with 4.3 Vortec and these made a world of difference. Being a ski boat it would only plane out once I reached 20mph and then could never hold that speed, it would keep accelerating to 30. It was always a challenge to get it just right to stay close to 20 on plane. These trim tabs just pull the bow down on takeoff within a couple seconde and I can cruise between 12-15 on plane depending how many people on board. Did not effect top speed as the boat can still go 52 with the stock 2bbl carb and aluminum prop and just me. Install was extremely easy just a little daunting drilling the holes.

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!

Was really scared to do this but instructions are clear as day man ! Really easy to install! Hope they work great on the water ! I recommend them I put them on a 21’ explorer bay boat I do recommend ordering 5200 sealant to seal everything .