I'm refretting my wonderful Alvarez 9 string acoustic, and I'm having a hell of a time getting my new frets into the slots. I've ran my saw through the slots a million times, loosened my truss rod, etc. - all the things that should be done with any refret. However, I can't get the new frets to fit - the tang is .003 wider than my saw blade. I can't press the frets in - I've had to hammer them in, and they are fighting me pretty bad. I've bent up a few frets, which will have to be pulled and replaced. Beyond buying an expensive new tool to file down the tangs, what can I do? Help!