Originally Posted by Crash
I found that a pipe cutter works well.....just make sure you have a good one! Then onec the cut is done just clean off the lip inside the neck.
I always use a pipe cutter as well and agree that you need a good one. 5 minutes with a 12inch pipe cutter and some sanding to take the lip out and you're good. Just don't go too fast or the lip around the neck will be too deep.