Re: 1990 Jackson Phil Collen model?
Original regular Soloist-style neck (with the "flat spot" running along the neck) on the 1990 originals. Not sure on the reissues with the oiled neck, though.
I've owned 2 of the original 1990 Pro models, and they're great guitars. Yes, the top is arched, but so is the back. They were extremely expensive to mass produce, and they had to drop them due to not making any sort of profit from them. These were made from 1990 to 1994. The "~100 made" statement is commonly accepted, since they took so long to make, so maybe 25 a year. They can mostly be found in Pearl White, with the Silver Sparkle, Ferarri Red, and Yellow being the rarest.
With time and patience, you can set them up for absolutely ridiculously-low action, and as long as you use a Jazz III and have a light pick attack and fret softly, you can blaze across the board like a grease fire in a single-wide house trailer.
However, that price is way high for "fair" condition IMO. Granted there aren't many on the open market right now to use for bargaining power, but shop around and wait for either one in much better condition at that price, or one for a lower price in similar (or better) condition. They're not for everyone, certainly, mainly due to the "It's a sig model, so you can't play it without someone expecting a cover song", so they do pop up.
