Pro10noob

iTrader: (13)

All depends on track lenght,open track,tech track,type of motor(brand) and so on.
To determine a rollout or gearing you need to consider more then just the motor and if it is boosted or not.
For example.
At our track if we run blinky(non timing) we use a FDR of 4.0 with 13.5 motors in TC stock.
If we run with timing,boost and turbo, it can come as high as 7.9.
This with the same brand of motor.
Pro10 is the same.
If your running a Tekin motor with timing, you have to let it run at higher rpm's then for example a GM or LRP motor.
This because the Tekin has less torq then the other 2 mentioned motors
Are you running on a nitro track? or a small track?

regards Roy