Bill... I am certainly no expert on the Tennessee style, but to my eye, it is indeed to long. The rear of the rest needs to come forward an inch or so, and the front also needs to go back a bit. Also, it looks like it might be a bit to high, but that could also just be the camera angle, so I am not seeing it right. If it were my stock, I think I would start playing with a pencil and eraser right now.
Matt