So far I've been on the fence myself with the figures. The I opened my new Beach head (with fixed crotch) and my faith has been 100% restored in this line. He posses great, his gear looks great and stays on and he is not flimsy at all. I know firefly is basically Beach Head but I'm guessing you have the diaper wearing version Mike.
Locate a new Beach Head figure and give that figure a try. Mine came from the new wave 6 I just got from Smalljoes. BTW, I took just over a week for my last order from them to reach my house, no duty taxes, a full case for around $60 CND after shipping. Beats buying them here in Canada. How sad is that?