it's a yamaha rgz 612. pretty standard 80's strat-ish style guitar. I don't know if sanding the frets will improve much. I'll consider it if I can't get the neck to move.
Well, as long as I push down on the center of the neck, all problems disappear. So the key is to get the neck to stay in that shape. I've tried heating up the neck with a 1000 hair dryer and then setting a brick on a towel in the center of the neck. It bends into the right shape, it just isn't staying. Maybe I need to let it set longer?
Well you sound pretty fearless so do what Lt. Bob says except add a heat lamp. Place it about 14" from the center of the neck and turn in on for 30 to 40 minutes, then let the neck set for 24 hours.
I would do that except I don't have a heat lamp, clamps, or a work bench. So I'm trying to do the same thing but with what I've got.
It's not really a matter of fearless or not. It's unplayable as is, so I don't really have a lot to lose. If I screw up, I'm no worse than when I started.