sigh I’ve got good news and bad news:
The Good:
Updated the gcode to print entirely at 60mms, was working great. Got K0 and K25 test prints done and was working on a K50 print.
The Bad:
My TAZ 5 has released the magic smoke and no longer works. =( The Z-Axis driver burnt to a crisp, and I found the heatsink that should have been on it with some black smoke around one edge.
Time to go cry into a beer.