[Rob Colatutto]

If you stall the Globe motors they only have a stall current draw of 18.5A so don't worry about drawing too much current from them. However stalling a motor is never a very good thing for it. Now, you mean a wheel stalls while you are rotating the modules or if a wheel stalls while your pushing someone? If the wheels are stalling when your pushing then you might either want to lower your coef. of static friction that way you will spin the wheels if you get stuck, or just increase the gear reduction to overcome the friction. If the modules have problems turning you could try using both Globes to turn them with one continuous wrap around all 4 wheels similar to the method Wildstang used last year on thier competition bot.