I recently purchased a Vendetta during the $200 sale. On my 4th or 5th drive, the steering stopped working completely. The stock servo isn't moving anymore, and when I plug in other servos to test them, they jitter violently and get very hot. I didn't crash, and it worked fine until it didn't. I can probably get a replacement servo through the warranty, but I don't know the cause the issue, or how to fix it. Any help would be appreciated, thank you!