Screw in on the screw to increase the tension, screw out to lighten the tension...rightie tightie, lefty loosie...
I replaced stock spring on the Rotor for a lighter one. It feeds just as fast, but does not put as much force on the balls. Also, I rewired the circuit board to create a motor break. What this does is...when the micro-switch trips and turns off the motor, it stops instantly. Again, this keeps the rotor form pushing excessively on the paintballs.
"All that is necessary for evil to triumph is for good men to do nothing"