Here's a quickie that should do the job. It acts only at current frame, so you would find the frame where the jerk happens and activate the script. I rigged it to include both left and right sides; if you need to have separate left-only and right-only scripts, you can just duplicate the file and eliminate the L and R stuff respectively. I think you know the drill for downloading the attached MESSAGE####: rename to something.py before using.

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