Re: Compare the three 'Custom' pickups
To quote Jamie Hyneman of Mythbusters, "When in doubt, C4." Sure, he meant explosives, but... enh, never mind.
It all depends on your gear and your taste. That's why there's an exchange period, after all. I think a C5 is too bright and thin -- and it is, in my setup and for my ears. (Oddly enough, I like how a JB sounds in similar setups, and don't find it to be excessively bright...) I'm currently back at a CC, with a slightly degaussed A2 and slightly raised screws for a touch more treble; you might find a CC to be too dull and round, but I find it warm and rich. Oddly enough, there's a lot of shredders around here who like the CC for just that reason. The more balanced (some say neutral) EQ of a C4 intrigues me, but I'm good for now.