I commend you, I think alot of hunters, admit it or not, would have tried the shot at a good sized buck.

I have known people that have put them down from such angles and in fact, I had a similar kill shot several years ago on a fluke. A doe was broadside to me and just as I released, it wheeled towards me...I still haven't figured out why. The arrow, with pure luck, struck it right in the main artery of it's neck. It dropped in it's tracks. I never, ever, want to go through the anxiety that I did that day as I saw the deer wheel around...I was VERY, VERY lucky.

Again, I commend you on being a true ethical hunter...you know the buck is there, let the stand rest and go get him later!