I have the PM 1130. I borrowed a precision level that reads in .0005" to check the bed for twist. I have the lathe bolted to the stand that I bought with the lathe. I put 1-2-3 blocks on the flat part of the ways. It takes .027" of shim to get the level close to level. I clamped squares across the ways to keep the blocks in the same position when reading the level. I'm off .0005" on one end and zero on the other end. I know I'm checking for twist and true level. My lathe does cut about .004" taper in about 8" and I'm trying to eliminate causes . Is the way I'm checking correct or not? I did some machine work in my old job but never had to set a lathe up before.
