So, as most are aware there is not a Power commander out for the R12RS as of yet. However, there are models for both the GS and RT. As both have the same engine I would guess that the models and maps are going to be similar... So I am taking the plunge and have a PCV (meant for the GS) on the way. I'm guessing that I'll have to modify the maps and I'm perfectly ok with that. I'll be sure to let everyone know the compatibility and success of my endeavors! EDIT: The UK DynoJet site confirms that the Power Commander V for the GS is directly compatible with the RS.