Talon SR issues

[ekapalka]

Hello! We just got our chassis assembled and running Mecanum drive code, and we've hit an impasse. Actually two of them. First, the talons all receive a signal and 'twitch' when they are not supposed to be receiving a signal and more so when at least one of them is. It causes the robot to 'creep' when enabled but not being controlled. We are going to try to calibrate them with our controller today, but it happens when no controller is plugged in, so it's a bit unnerving. It doesn't severely mess with driving, though. The other problem will hopefully be fixed with calibration. The motors spin about 50% faster in reverse than they do while going forward (meaning that the robot will arc while strafing and strafe a little while driving). Does anyone know if these are things that should/can be adjusted within the program or if these are caused by bad Talons (probably not)/sidecar/PWM cables? Do other people have this issue? Thanks!