Archer did not break as well as he did against Shane. He also made a lot of uncharateristic mistakes. Johnny also had a lot of bad luck on the breaks - where the cue ball was kicked in for a scratch - at one time like 3 out of 4 breaks. He also failed to get out when he had ball in hand at least 3 or 4 times that I saw - so he didn't make Bustamante pay for his mistakes.
He also miscued at least 3 times Saturday that I saw. Mistakes against Bustamante are magnified because his break is enormous and he gets out on extremely difficult layouts. He banks amazingly well to set up difficult outs.
I think there was too much history there. Johhny slowed down a bit and looked rattled against Bustamante. Bustamante showed no fear and made him pay large for any mistake. I still think Johhny is a championship player but he looked more human against Busty than he did against Shane.