Thanks for the review, Toon :) I just ordered some SMs for my SG, and Mules are most definitely going in my LP now, and maybe a RR/SM set in the strat, so between those three I think I'll have blues and prog rock covered. I'm becoming a huge fan of Gov't Mule and the Allman Bros, but somehow I never put two and two together with the name of the Mules, haha. I'm loving that youtube video, by the way. I'm coming to appreciate the blues more and more.
I'm like Andy in that it took me a while to come to appreciate vintage pickups, and I've been trying to figure out why that is. I think part of it is to do with my listening to metal (even though I never play any), and part is to do with being turned off low output alnicos by Seymour Duncan's Jazz model (which I haaaated), and only being able to find the articulation and clarity I wanted in their ceramic and higher-output models.
I'm starting to think realise the search for the perfect sound is an endless one... I'm just glad it's a fun one too.