Ok, just got my first 1/8 buggy used off ebay, mayhem pro, and there is a slight problem with the steering. I haven't driven it yet (no starter box) but when i turn the wheels to the right and back to a neutral position they go left first then back to center. I am assuming this is a problem with the servo, but just wanted to check with you guys to make sure its not the receiver or something else. The radio is a jr xr2i and the steering servo is a z650. Since it looks like i will have to replace that servo would another z650 be a good servo, if thats what you think the problem is?