Should be fine although I have found some faults in the lockdown and Dev versions with regards to wear offsets in Turn. Doubt if it would affect threading though there may be others faults.
Think you have the ESS so really the Mach version shouldnbt have too much bearing on things as only the trajectory planning for threading is done in Mach and the ESS itself does the threading.
Hood

I've got a thread started over at warp9 to see whether greg has any ideas. In the mean time I guess I need to break out the scope