krole: "Anyone know off hand what the torso size is for the CCS Hybrid Packs? It says short torso models are also available, but never mentions what the torso size is for the regular or short torso models is. My assumption is the regular is 18-21"?"
I have a ULA Catalyst, Torso sized Medium for my 19" torso as measured per ULA's video instruction. My Pioneer Pack with standard torso fits perfectly and remains comfortable for an entire portage. Unlikely I'll ever carry it as far as my Catalyst but, for the distances I carry the Pioneer Pack, it feels custom made for me.