I'd be curious to see if the newer versions work better, mine was about 3 seasons ago, it was awful. Again, I'm very happy with the Powertap, cost, performance, etc. Short of dropping $5-$7K on two new or used SRMs for a road bike and a TT bike, it's the solution that works well for me. The Powertap's big advantage is the ease with which it moves between bicycles.