Absolutely disagree with you Ill and agree with Pig. You are betting on Praz being able to wrestle a guy with pretty damn good wrestling himself and almost two weight classes bigger than him or outstirke a guy with decent boxing and an 8 inch reach advantage. Praz debuted at ww against Paulo Thiago and lost, then went on to beat quite a few past 145ers by bullying them. I don't think he is going to be the hammer in this one and he probably does end up gassing being the nail, but I don't think he even needs to for Cummins to win.
Just a tough draw for his return to ww. IMO guys like Cummins are the reason he killed himself to make 155. Oh and he is almost 37....and the avg height of a 135er.