"Z" ccordinate too deep for lettering

[CrookedWoodTex (Tex (Don't Mess With My Texas!))]

@neilferreri

Was the probe hanging over the corner of your stock when you probed for Z only?

Put this another way, for Z ONLY (zeroing for changed bit) using the probe you put the block totally on top of the stock. Do not hang lip over the corner or edge.