Finally got serious and installed a switch to change between the Rapid Turn and the Mill without having to climb up and change power cables. The job was easy, just a four pole dbl throw toggle switch and some 14-4 cable to make new pig tails. I also have the Mill Fast switch to change the VFD keys. Everything works great. I also added a switch to allow me to reverse the RT's direction of rotation when wanted.

Now I just have to figure out how to program the RT. Found precious little useful help online. I tried to set G54 and discovered after so doing i could only move in the axis in the negative directions. Tried a search on this forum for Set Offsets +Rapid Turn and found nothing. I'll just hack my way through it. At least the thing works as I wanted.