Wow, now I'm really confused about the Nailbomb. Glad I'm not considering buying one. :)
I think its just down to the guitar that its in, I swapped the nailbomb from my sg into my strat last week because I was finding it quite dark sounding and bassy and it sounded far brighter and nicer in the strat, probably because of all the mahogany in the sg. Thats probably why Tim recommends using low output pickups in sg's.
Bks are very guitar-sensitive.
On the mahogany: yes. Medium output pickups mud up in them (so gibson uses medium output pikcups WHY?), but very powerfull pickups (in BK terms, MM and up, with the NB on the cusp: works in some bits of mahogany and not in others) can cut through it and are fine.
