I have no regreat, only a slight loss at the sense of self. All of that energy does not come for "free." You must pay the piper so to speak. You only have a few surges like that in your lifetime, so far I'm on like #7 or something and I feel I don't have it in me to do too many more, at least at that intensity. Kind of like a cat that gets 9 lives. In my 20s I was a bit foolish on what I chose to invest those 9 lives in. Luckily, as I've gotten older I'm much smarter and I have chosen wisely.