Hi TreeDude Ben
I have also had some overheating with a SP v3 6.5 and a Reventon R SP controller.
It's the first time I've come across the motors getting too hot in all my time in the hobby.
Reading your post it leads me to suspect the controller (ESC). Could you let me know if swapping out yours fixed it? I have a spare
Xcelorin here and I could always chuck that in one.
Something's up with mine heat wise too, that's for sure.