Welcome to our forum.
Foot dome was what my wife found helped her not float. So we have a foot dome.
Goldengirl, that's the reason you wet test. Not all tubs are the same depth and not all seats in a given tub are the same height. My tub has 3 different seat heights and two different seat back angles. Every tub is different, you just have too find one that fits both you and your husband...keep looking, it's out there.