As the resident Organic guitar nut i thought i must give a link and a few words.
http://bareknucklepickups.co.uk/forum/viewtopic.php?t=2342&highlight=I believe theres some stuff there talking about the Custom Organic BKP'S in that thread i made.
Ive had a few chats with tim about them and i would describe them as :
quite a rounded and full sounding pickup (tho i find the bridge to have a slighly edgy tone at times also and am considering trying a few other bridge bkps with my organics) to me they seem very good for fusion type and mellow jazz sounds but also very good at the instrumental rock lead tones and anything were your want a very musical and soulfull edge with enough power (and not to much) and a warm open/transparent tone.
Tim agreed with my view on them and added: "They're actually very warm with a good mid range, bass mid treble 5/6/6 maybe 5/6/7 in a maple board.........very much a hot PAF tone as opposed to a rock/distortion type humbucker although they're no slouches in the power dept!
Hope that helps.
