I got back into the staiwell today. Back to the fun!!???!!

Three sets of 33 floors (1200') with 35lbs in 45 minutes.
1. 15 minutes
2. 10 minutes
3. 16 minutes
The remainder of the 45 minutes was waiting for the elevator. The first two felt OK, but was feeling depleted for the third so I stopped there. I may have to start back more slowly than I want to.