I added SmartTabs to my 1980 Century when I had & absolutely loved them. My problem was crazy bow-rise on the hole shot and excessive wandering at low speeds. I attribute the problems to the fact that it was only a 4cyl in the boat & was narrower than modern boats. The SmartTabs worked amazingly well & really improved the handling of the boat immensely. It also helped with reducing roll over waves & just generally smoothed out the ride. The boat never went over ~38MPH at best so I'm not sure if the ~35MPH I typically saw was because of the SmartTabs or if that was just typical & that one 38MPH was a fluke. Either way, it was a nice improvement on the boat.
Since then I've gotten my current 2008 Four Winns which is wider, has a better designed hull & is much better powered (5.0L V8). I considered SmartTabs just because of how well they worked on the Century, but decided against it because I really wasn't solving any problems. The Four Winns can porpoise some but it's easily fixed with trim so not really a problem with the hull but with my trim position which you should be adjusting frequently based on speed, water conditions & weight distribution inside the boat (people) anyhow. Point is, there was no reason to add something to this boat because it works perfectly as is. It wasn't broken so I didn't fix it.
Recommending the same for you if you're not solving a specific problem. If you are solving a problem then, for the money, the SmartTabs are amazing & I'd highly recommend them.
