I read Ru Paul's autobiography entitled "Letting it all hang out." She describes how she achieved the best tuck ever by buying girl's small cotton panties and putting the back and tucking the unit back and pulling the first pair on tight and up the crack of her ass and then wearing another pair over them. Another well known cross-dresser and drag performer in Portland, Oregon told me that she buys an undersized pair of "Legs" pantyhose and cuts the legs off below the reenforced area which leaves them looking like see through boi shorts, then pulling them up as tightly as possible on the tucked items.