man..i'm up and down on this issue...i've started out using a poly and jdarty6173 started out using a double-denim so its pretty much up to you and your wife at this point but i would give the double-denim a shot. what can ya lose? now, there are a couple of guys on my board who are trying the GEN II from karin. i would get one made for a 400 bench and heck, lets plan out a meet down the road and see what happens. oh and open-back is good since i can really plant my shoulders/traps better. but all in all, give the double-denim a try and then later on go with a double-poly, which is going to be my next shirt. tb