This is actually something i'm thinking about right now... pretty sure my friend (we haven't really nailed the specifics yet) wants to switch on occasion, but hasn't brought it up because he knows i don't. i'm trying to think of ways i could try it out, maybe if i had some kind of small set of acts that i could get down in succession, that way i wouldn't have to worry about not having the imagination. it would take all of ten or twenty minutes, small, short, dominating, low-intensity. it would be like window-shopping the role, you know? with the agreement that there's no pressure to buy if i don't like how it fits