Anybody use smart tabs?

You have to watch any kind of tabs backing up but they are in the down position until you get up on plane and stay there until you throttle down. I never had any problems as I always go slow in reverse and never noticed any handling problems and they are not that big. I have large bennets on my big boat and sometimes forget that they are down and dont notice it until I throttle up. I would be more concerned about putting them on a hull powered by a jet drive outboard because if you stop in shallow water they will be on the bottom which is not good...Frank