Hi Wes,
I suspect that is a problem on our end. Rather than it being a matter of us overwriting anything, I think maybe our Plugin is supposed to read the Pokeys MPG position from somewhere and cause axes to move.
Normally an MPG is connected directly to KFLOP. This makes the response instantaneous. That is really the purpose of KFLOP to remove the real-time requirements from the PC/Windows/Mach3/Plugin.
I think for the trouble of adding another cable it will be well worth it to have better response.
Regards