Congratulations, Tim!
I'm with GregH... I've had more than a handful of four-second kills as well; it's always good to see.
I actually had a huge doe under me (well, at like 5 yards) a few years ago that I hit a bit high and forward -- right where you'd aim if you were rifle hunting and wanted to break down the shoulders. Well, I hit her EXACTLY there and she simply collapsed stone dead in her tracks -- just like a rifle kill. Not sure of exactly what I hit in there, but she was dead before she hit the ground. That was WAY cool.