I have been having difficulty trying to change the drive speed on my robot. I have been able to change the speed of other motors because they are controlled by pushing a button once, however I have the driving motors set to be used by the joysticks and because I have to input the controller positions, there is not enough room to input the drive speed. Here is a copy of my code for the drive motors.
FrontLeftDriveMotor.spin(vex::directionType::fwd, Controller1.Axis3.position(), vex::velocityUnits::pct);
BackLeftDriveMotor.spin(vex::directionType::fwd, Controller1.Axis3.position(), vex::velocityUnits::pct);
FrontRightDriveMotor.spin(vex::directionType::fwd, Controller1.Axis2.position(), vex::velocityUnits::pct);
BackRightDriveMotor.spin(vex::directionType::fwd, Controller1.Axis2.position(), vex::velocityUnits::pct);