Honey, Today's another busy day, so I'll get back to you on the questions later.
As for advice on how to persuade your husband to buy the liberator wedge, you could tell him truthfully that it provides excellent lower back support no matter who's on top (don't know what you could tell him about how good it is for rear entry where back support isn't a factor ).
Even if you're on the right track, you'll get run over if you just sit there. Will Rogers
To love at all is to be vulnerable. Love anything, and your heart will certainly be wrung and possibly be broken. C. S. Lewis