To me the 2nd clip sound better especially with the fast arpeggios. This non-mpt seems to hold a lot of promise. I have often thought, even with IRs I like that at certain times the sound can be a bit strange and almost synthetic. Like that it is thick (phasy) in a non-pleasent way.
One of my dearest musician friends that I respect (really good guitarist and Mesa junkie like myself) doesn't use modelers and refuses to use Axe-Fx because he says that IRs sound weird. He says that the middle frequencies sound pointy. The first time I created a clip with the non-MPT'd IRs was when he finally gave in and said he has Axe-Fx gas. I think we all hear things differently and concentrate on different parts of the tone. Removing the phase information of the IR (MPT) might be something that some ears hear as too direct and therefore I'm personally sticking to the non-mpt:d IRs.
BTW THIS CABINET IS FINALLY OUT: Fractal Audio Systems - Cab Pack 8 - CK's Brit TV 4x12 - UltraResâ„¢