I think Mack is decent, but I'm not a fan of the low guard, or shell defense whatever you call it...Judah a southpaw landed some rights and that's not good. Mack had his mouth open about the 4th, and was adjusting his trunks which leads me to believe his stamina isn't 100% where it should be, but it did improve. IMO he should have got Judah out of there he had every opportunity, especially after the KD.