I think P-90s cut through it better, humbuckers make fuzz mushy in my opinion.
strangely enough I just got a neck MQ and it seems to not work well with fuzz.....now the A-bomb, well does wonders me thinks.
Maybe I should have elaborated, I wasn't going from personal experience, I'm a huge muse junkie, and I was comparing early fuzz to current (albeit used less) fuzz. It was quite mushy when Matt had those Motherbuckers, less so when he used Crunchboxes (but they're still high output ceramics), but at its best (imo) when he uses fuzz through a bridge MQ. I dunno if necks would work well with fuzz, they tend to be warm, and you need something a bit bright and cutting (again, imo).