I currently have a ULA P-1, which is too small for a winter load. I'm looking at a Catalyst, which is listed as having 4600 ci. However, an outfitter told me that a Catalyst small size, which I would wear, would have less volume than a regular Catalyst (medium).
Thus, my question is whether a Catalyst small has more volume than a P-1, and if so, how much more. If the difference is only marginal, I'll make do with the P-1. ULA's website does not have technical info on the P-1 anymore so I don't have the volume for it. Nor does the site say how much smaller in volume a size small Catalyst is than a medium. Anyone have the specs?