Hi, has anyone here used their tradbow to hunt yellow bellied marmots in the Rockies? I have a 40# @28" recurve (29" draw) and several small game blunts (judos, hammers, and tiger claws to be exact). From your experience, do I have a good enough poundage for any of these heads to humanely kill marmots (assuming good shot placement), or should I use broadheads for better penetration? I understand they have thick hide and fat for the cold climates they inhabit. Thanks in advance!!!