Thanks for the 4.8v clarification, that makes sense now.

I found the problem; it's 100% the servo saver. Can I stiffen this thing up somehow? If I turn all the way left or right, then with my hand try to turn the front wheels strait, it's very easy to get them almost perfectly strait before the servo itself moves at all. The servo saver just flexes (the little spring inside it). Is there a way to stiffen it up, or anyone know of a stiffer aftermarket part that will fit?