I haven't found a greater thrill in life than meeting a girl in day-to-day life (like at the supermarket). Always a mixture of deep fear and excitement, despite any attempts to rationalize the heart-pounding away.

I know. That's a bit of a problem. Once you get into it there is nothing that can replace that adrenaline rush. You are getting so bored when you are in a relationship and have to stop doing it.

That's the spirit ...Good Luck!

Nice, that's fast. I wonder what the optimum grade is to maximize ascent rate.

That's an interesting question. Speed climbing[0] is for 100% vertical climbs and seem to attain speeds of 6,000+ft/hr rate of ascent for only a minute. Over 30 minutes, people are very close to climbing a kilometer in vertical height[1]. One of the fastest times that author found was 0.568m/s (6708.6614 ft/hr), with an elevation of 16.4 degrees.

I'm going to assume it's roughly similar for 60 minutes, as well as 30 minutes.

[0] https://en.wikipedia.org/wiki/Speed_climbing [1] http://www.irunfar.com/2012/04/the-30-minute-kilometer-a-loo...