Hey Man... I did this EXACTLY like you said... everything was done exactly like you said and nothing happened. Butane shot through clear the entire time...I packed it harder just to make sure, tried again NOTHING... So....got a new pen tried it again did it exactly like you said AGAIN and guess what..nothing. So i pretty much wasted like 1.5g of good bud for nothing, thanks. Don't suggest trying this unless you have nug to spare.