i wouldnt say they are BS it just they were not intended to work over long periods of time, they will help keep it clean though (or should i say help make it easier to clean). A lift is your best bet. I had a 260 Stinger years ago that i stored in the water and it was an insane maintenance nightmare to keep clean luckily we have our own travel lift at my boat club so pulling and washing was no real prob i just had to do it like every other weekend to keep up on it.