I don't think Lister is overrated, I just thought he cut too much weight and being so dehydrated and gassed just shot all his offense and defense to shit in the third round. His stand up will improve.
I think Riggs is just trying to get some wins in a row at a constant weight claass just to get rolling. The kid is 23 and has fought a ridiculous amount of fights for that age. In all sincereity I think the sky is the limit for him if he can keep his head on straight.
"Speed plus mass equals destruction" - Brock Lesnar