You know, I could have sworn I saw a message from Trapper some time ago that talked about doing exercise while OP, but I'll be darn it I can find it now. If, I remember right, it was felt to be quite effective! Maybe it was someone else, but Trapper does seem to be the experimenter.
I kind of like the quite time and don't really want to get into a position where I might drool, or worst swallow! Think about being bent over in an exercise pose and oil drool starts to ooz out of your mouth :)!
But whatever works - it just might be a good thing.