I'm recounting my experiences of the taleb truncheon elsewhere.
Rowing Machine1:00:00 13.47 km (4:27 / km)
A generally easy row. First 50 minutes were ~19 spm and whatever splits felt natural (appeared to be high teens.)
For the last 10 minutes, however, I let nature take its course. Average over the last 10 was 30 spm and 158 splits, although the second 5 was faster yet, in spm and splits.