I need to buy a neck restraint device for track days. I have an Exige S with the Lotus Sport Recaro seat and 6 point (non-Hans compatible) harnesses. From my research, and discussions with other drivers, the R3 seems like a good one to select. I noticed on the Safety Solutions website that they sell two models of the R3 Rage: one model is listed as "in seat" and the other does not have this designation. Which is the right one for my setup?