programing the vex optical shaft encoder

[youngWilliam14]

i'm having a small problem w/ optical shaft encoders on the vex swervebot i'm building. the encoders tell the rc how far the drive pods have turned.

in the program, i start all the encoders, and have them retrive to variables. once the vairables reach a the right value, the pods stop turning, then i reset the variables when the pods need to turn back.

my problem is that i allign all the pods, but when i test the program, they don't all turn the same amount, so they're off when they come back. i think it might be how i set up the motors to run.

can anyone help me fix this? i'm including a copy of my code