Hi,
to date none of the CNCDrive boards that do have a Mach4 plugin (UC100, UC300, and UC400) have many realtime supports
like backlash comp, lathe threading, realtime THC, laser vectoring/rastering or spindle PID.
It seems unlikely therefore that CNCDrives new controller AXBB-E will have them either if and when CNCDrive get around to
making a Mach4 plugin for it.
CNCDrive boards preform very capably with Mach3 and have a large following. Their Mach4 plugin is still somewhat behind
the curve however.
Craig