Kyle,
I'd like to take a shot here. You are brave and generous to share your video for us to comment on. I can't remember exactly, but consistency overall is what I feel you are frustrated with. This was 1 arrow on that video, but this is what I see, and it's something I've corrected in myself as well.
I see an easy fix for consistency with your bow arm. Good news huh? What I mean is regardless of wingspan and all, it's looking like you may be combining principles of push pull with Hill form, and it's my belief they don't mix quite like that. Just give this a try: set your bow arm when you are ready to draw, and don't deviate with how you set it. So either hold the bow in front of you so you know what you want the finished arm position to be, or set it at your side, but get that bow arm set and just raise it to the target as you do your swing draw. Don't allow collapse, don't push towards the target. Get the bend you want, get the grip and all, and keep it very rigid. With the bend, you are forced to push toward the target, yet the bow shouldn't move that way. Also, maybe try a little less bow cant.
My guess is all that moving of your bow arm is leading to variations in arrow impact that will just go away with a rigid bow arm position.
Give it a go and see what you find...