Let me start be saying I don't have a video to post at this time, just looking for some ideas...
I was shooting pretty good until about a month ago when I modified by form by bringing my anchor back to my jaw. I had been using an index finger at the corner of my month, but that didn't get my back completely engaged. Now I'm using by thumb under/behind my jaw as an anchor point. Since the switch I've been having vertical point of impact problems. Typically my arrows will strike within and inch or two left to right of the center line of my point of aim, but either high or low (we're talking 8-12" high or low). Any ideas what could be causing this?