Erg rowing 24:50 [3] 5000.0 km ( / km)
Just didn't have it this morning....yesterday's short speed-ups?
But I did tear the Concept II apart and do the full recommended maintenance which consisted of cleaning, vacuuming the innards, and lubricating the chain. All made a significant difference.
There seemed to be little visible dust to vacuum...until I noticed a thick 1/2" mat of dust around the inside of the screen. Getting rid of that really improved air flow; now I feel a distinct breeze when I row. And the chain is slickly quiet and smooth.