I've heard great things about the M1a, which I am considering for my Blueridge 143-2.

The guitar has a wider-than-standard 1-3/4" nut. The string spacing would be wider than the pole spacing on the pickup. I want to know if LR Baggs has anything official from the development team, anything tested and documented, regarding spacing tolerances or anything about performance on guitars with non-standard string spacings.

I'm also curious about anyone's personal experiences with after-market pickups on guitars with above-average nut width.