I just picked up one of these 17.5 motors, paired with a Hobbywing v3 in a stock TC class. My local track is a medium sized, technical carpet track with low-medium traction.
I'm going to be comparing these motors to several others: Revtech with HT Rotor, Murfdogg 17.5, stock Revtech, and a D3.5 with HT Rotor.
Stay tuned! I'm excited about doing this!