Concept2 Forum

The one selling point of the PM4 for me is the integration with my Garmin watch. Primarily I run, but like to have all my fitness data in one application (run, bike, row etc). That is pretty much the only thing for me.

If you want to improve your running, then ideally running needs to be your main activity, and rowing should be seen as complimentary and used for lighter cardio workouts. Given a history of injury I would not try to patch yourself up with orthotics and the like. Go to a good sports phsio / chiroprac...