About a black Tamiya Sport tuned...
I just changed diff in my M05Pro from a M05 balldiff to a hybrid of TA03 and Manta Ray.
Took gear and thrustbearing from Manta Ray and metal parts from TA03.
Then I machined the outdrives to fit the ears on driveshafts. The car felt better, more stable and faster. The diff was set pretty loose and smooth.