Lots of good info in this thread and I have been trying to jump around through it for the last couple weeks before I got my hands on a used D3. It came in the mail yesterday and included the FOW and c-hub delete mod. I have been using my XI Sport with the diffs swapped (front open with 500k oil and locked rear) for drifting on a local carpet track but this thing is a completely different animal. I need a lot more practice with CS drifting because I am used to steering into turns. I am running a Savox 1258TG, MMP, Tacon 8.5T sensored motor, and replaced the 22T pulley with a 20T Square pulley to lower the CS a bit. It took some adjusting to get the belt tightened up but everything is all good now. Gonna do some 1/0 buggy racing today with my RB6 and then head over to the drift track later for some more practice. I only have about 100 more pages of this thread to read so it should keep me busy for a while.