Hmm, not seeing a fix for the error I reported. Maybe in the next release. The software guy at Tormach that I was in contact with seemed to know exactly what was causing it in his emailed response a while back. Basically, there was an intermittent issue where a tool change command in a program would NOT trigger a pause and a user prompt but would instead skip to the next line, usually a spindle start command. Thankfully I tend to stare at my machine while it runs so despite this happening several times switching from my superfly to a 1/4 or 3/8 cutter, I caught it before the 7500 spindle speed caused something major to happen. Only seems to occur for the first tool change of the program and only under very specific conditions which I am not always able to replicate.