I just ran my Pro 4m last night for its first race and I noticed that the ball cups became very sloppy. I was wondering what some of you other guys were using. I race at RSJ's. I use to use rpm cups on my Losi car but I don't think they will work on the Pro 4 as the ball studs look way bigger than the losi ones.
andy....you can use either RPM or Schumacher Ball Grippa ball cups...both work well.
I would like to know what the different ackerman setting do.
longer ackerman = more aggressive entering a corner
shorter ackerman = less aggressive, smoother
kevin k or someone could verify this...but in short i believe this is correct.