Thanks Guys!
It would appear that the backing plate is fitted with Torx headed screws (4 Off) and therefore can't be changed for one of the spindle type backing plates available for the PC, or any other machine.
I haven't been able to find any smaller OE backing plates either which means 4" spot pads can't be used with it either, unfortunately.
Two more questions if I may:
What sort of speed settings are you using for applying product given that the minimum speed and maximum speeds are higher than the more commonly used Porter Cable polisher?
Other than the larger motor and ability not to bog down, as the PC, what other reasons would you give to recommend the DeWalt over the PC?
Thanks,
Alan W