Awkward macnum drive issues

[Dustin Shadbolt]

Hello guys I'm stumped about something. We are using a macnum drive with 4 victors controlling the drive. The left side of the drive is outputting roughly 7volts. The right side is outputting about 9volts. The back-left and front-left are the exact same 7volts. The right side is exactly the same 9 volts. At first we thought something programming wise, but I'm not sure what would cause this issue. I believe it's something along the lines of hardware, but I could be wrong. The drive is a direct-drive system with the nano tubes and what not. Could it be an issue of balance? I imagine the balance on the wheels would actually effect the outcome of the system. As you can see, I'm just completely stumped.