Auto Bed Levelling Glitches

[Roxy]

MiniMadRyan, I changed the Sled Docking stuff (and a few other things) to how I have my code. Be sure to save your current file set, but then replace your Marlin_main.cpp with the attached file. I took some amount of care, but there are a lot of changes so I'm not positive it will compile clean. Please try it and let us know what you see.