After 50-ish sessions on the crosstrainer, I had enough. I was boared out of my mind. Not that I don´t appriciate to able to train on the crosstrainer (the alternative being nothing at all) but it was too monoton. Finally I tried swimming in Open Water and to my absolute delight, it worked just fine. To be able to train something else felt awsome. Like I had been given parole from my corsstrainer sentence - keeping me sane.