I'm trying to figure out which one of these speed/cadence sensors to get for my road bike and can't make up my mind because I can't find any head to head comparisons. Do any of you use either one of these? Better yet, have any of you used both? In one review of the Wahoo sensor the reviewer said that Runtstatic was stamped on the side of the unit intimating that it was made by Runtatstic and white labeled by Wahoo. The Wahoo is $59.99 while the Runtastic is $99.99. If they are in fact identical then it doesn't make sense to spend more on the Runtatstic. But does it have any more features that the Wahoo does not. Any answers to these questions would be greatly appreciated. Any experiences with either or both would be fantastic. Thanks!!