I would not trust G92.. I have had it ignored once too many times at random in code that works most of the time.
Acceleration rates are being calcualted based on a unit/sec^2 scale.. It causes problems when simultaneous angular and linear axis moves are made. Mach needs to calculate acceleration in STEPS/sec^2, like I other control software does. take units out of it...
The way it is now, you woud have to have ~115" diameter object in your A-axis (pi*115 = ~360) for "units" to be the same...
But alas, I will make another thread about this and see if I can get Art to change it.... after asking many time before..