Despite Jon Jones saying he would fight Cain in a heartbeat I think he knows that a prime Cain would grind him out at the moment. Last night I felt Cormier won the first two rounds with his uppercuts, narrowly lost the 3rd due to tiredness then Jones cardio took over and left him by the wayside. Cain on the other hand would have kept smothering him with his boxing until the final bell. I don't think Jones leverage would affect Cain's energy levels as they did Daniel's. I think Jon will wait until he hits around 30 before moving up. Then perhaps Cain will be less of a threat.