There's also another option, mounting mirror blades (of any thickness) onto the actual playfield rails so the blades lift WITH the playfield out of the cabinet, therefore no scraping issues.
This means the left and right alley rails need to be routed thinner (or better still, fit thinner rails) to allow the thickness of the mirror-blade to fit in snugly and then secure the bladers in place with short screws into the wooden rails.
putting it out there ;-)
MM.
