Re: Anyone try the Alnico 6 or 9 magnets in their pickups?
A6 is like a slightly warmer A8, with a little less output, not much of a difference. Whereas A2, A3, A4, and A5 are all very distinct, A6 doesn't offer much new.
I'd like to find A1's and A7's and see what they're like. They are made; the hard part is getting them cut in guitar PU size, as there's large minimum orders.