My guess is that the straight fret is at 5 to make chording easier lower on the neck. With the straight fret at 12, you would have to bend your fingers in strange ways to play some chords lower on the neck.
The guy from Blackmachine uses a .080 on his 30" 8 stringer. I'm looking into building an 8 in the near future, so if you use the .060 let us know how it works out. .080 might be overkill, but I hate floppy wound strings because I play with a heavy attack on the pick hand.
The 8 strings Meshuggah uses only have a bridge pickup, and they do everything with it. Granted, they don't play your typical hair metal leads, but they do run the gamut of guitar sounds, from clean to heavily distorted.
Matt, I don't know if your neck is in the building process yet, but I was reading this a while ago and the builder said a 27 or 28 inch scale length is too short to get good tension on the low F#. Just a heads up.
How well do you think this thing will balance? That is going to be a pretty heavy neck, and with no upper horn to speak of, it might take a nose dive. I like the rendering though, looks great. Sick color too.
LI as in Long Island? What is the name of the store that carries it? I found a place in Huntington that carries wide board 8/4 mahogany but no one with any good maple. Whereabouts are you? I'm from Lindenhurst.
I don't know if this has been asked before, but how do you cut your bevels? Your work gets better everytime you post a new guitar, I can't wait to see what else you have in store for us.