Hunting for a good occasion on a SkiErg now (not easy in my area, south of France).
BTW, it would be interesting if concept2 created a combined Row&Ski-Erg:
- Single flywheel (on the side of current SkiErg) and single PM5
- RowErg frame merged to the vertical base of the SkiErg so that you row facing the SkiErg (not like the setup I'm envisaging/you've tried)
- Rowing rail still detachable or foldable vertically (to move things around)
which it should be).