We have the same model cart. We noticed a distinct jerk when starting from a stop with moderate acceleration. The dealer offered to change the drive belt to reduce or eliminate the problem. It appears to be a wider/thicker belt and the result is slower acceleration. At first, the new belt created a shudder upon starting out, but the dealer warned that might happen and that it would disappear, and it did. But the jerky start is gone. I think they told us the new belt was one used for rental carts and was intended to last longer.
BTW, the installer had us keep the original belt in case we wanted to change back.
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