[psy_wombats]

I'm fairly sure. Unless... What is your frcRF function? If that's a ramping function, I wouldn't think that's direct division. (I've never used RobotC anyway.)

If it's not, you might not be getting the max speed, as the maximum value you're getting from the joystick (256) divided by 5 is 51. That's less than your max of 127, (or 256 if that's how you're using the values.) Whatever works for you. (Though I'd check just in case you don't really know your max speed.) Good luck.