Carbonfiberboy 

Yeah, that was real important in HS gym. Turned out that the skinnier one was, the more pushups one could do. Some skinny kids could do 70. 25 was good for me. I was terrible at ball sports, so no one noticed that I could put the shot further than the captain of the basketball team. I weighed maybe 132, but my older brother taught me the skill plus I was already a cyclist and had been running a daily mile since I was 12. This all reminds me so much of those days. Our PT instructor was also a history teacher. . How it was back then.

Watts/kg is a pretty good measure of cycling fitness. Another good one is ET for a hilly 400k. My wife and I just got back from a 10-day unsupported backpack in the Cascades. We've been doing those once/year for 48 years. I'm tired, so it'll be daily 30' recovery spins on the rollers for a week. Just baseline fitness . . .