I probably have a strange method for this that's become a kind of ritual because I have unmedicated OCD.
Whatever amp I want to use, but particularly if it's a clean amp, I put a distortion in front, then pick the IR based on the high response I want. Besides, I might actually want to use some distortion or fuzz later.
I chose the York 5153 because it has the least negative out of phase sound so many IRs have, like comb filtering that's impossible to get rid of.
I don't use MPT, they sound weird when mixing IRs.
On mixing IRs, I move them off 0.0mm because that number and 33 are annoying and I see them everywhere. 33 333 3333 3333
Just kidding, it's because one or the other will do better in front or sometimes like with the 57m-3 IR for some reason it didn't auto-trim on import.
So I align them not to be perfect because you lose highs, but either to a specific mid response like to harmonize with a snare you like, or to get more highs if the amp is darker. There's an absolutely huge variety of tones in slight alignment adjustments, but usually the closer together the less highs and more mids. It's better than HPF/LPF most of the time, which has it's own phase issues.
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I usually start with one of the first five 57 IRs to get the overall frequency response I want, then add in any other mic that harmonizes and doesn't have comb-filtering phasy tone when solo'd. That way you can pan for stereo, or know one or the other will be great on it's own.
The other reason I chose to use just one cab is because I have over 20GB+ of IRs that I've spent countless dollars on over the years (plus kemper profiles, fugggggg)... I've had enough. I revolted against myself and York won for having clean IRs with little or no comb sound., plus the EVH 20w speakers are good at everything.
