What is it in MM that can give me goose-bumpsI cant answer that, MM's give me haemorrhoids, which is not something I like to scratch.
LOMC's are the only cartridges which give me goosebumps, with one exception - the Moving Iron London Decca Gold ( modded by Garrots ) or London Decca Reference. I also enjoy the Soundsmith Paua MI, beautifully balanced and effortless on classical music, but not quite goosebumpy.
Speed and coherence are important to me and MM's cant do the business here.