I bought a set of Rally pedals....sensors on both pedals. The Garmin web pages only make reference to the 130, 830 and 1030 (?) garmin computers and I'm not sure if I am missing something with my 520Plus. I have gotten them paired but not yet done any rides. I can't find any information about the use of the 530 vs 520 and whether there would be an advantage to upgrading to one of the more recent Garmin cycle computers. Any thoughts?