I took my new mugen out three days in a row to find the right setup for myself. I have yet to strip any gears but I did notice that there Is now a wobble in the second gear that wasn't there before. What is the quality on these mugen bearings.? Mugen really needed to make a 2nd gear carrier like the X-ray. I don't think it's such a great idea to rely on the plastic spur. I'm going to order another brand of bearing to see if bearing quality is the issue or if it's the spur.