When creating a new macro, if by chance you use the same name as an existing macro, the new macro overwrites the existing macro without any prompt or warning that the existing file will be overwritten. Maybe this is intended, but to me it seems it should at least prompt before over writing.
Thanks
@Danal That would be nice, but I can have up to ten heads, so thats lots of servos or other. I am thinking of a "tool Present" signal for each head to a dig in, which can then drive my tool parameters somehow. I like that idea though. I could add an LED to show each extruders status. All green = all good. 
What are your Z screws setting on? It looks to me like inconsistencies in your Z axis causing a lean of the whole part. It looks like it gets worse as the part gets taller. I had similar problems when my Z screws were coupled directly to the stepper shafts, which had endplay, and inconsistent springiness that could not be controlled. As one screw advanced less than the other, the bed tilted and the part leaned just a bit causing a very similar affect. I think it happened lower in the print as well, but the error was amplified as the part got taller, and seemed to gradually appear rather than start late in the print.
Do your screws rest in a bearing meant for thrust load? It looks pretty good from the pics, but I cant tell whats at the bottom end of the screw.
(Mine ended up on pin roller thrust bearings, but my beds get to weigh 40-50 lbs empty)