In the photos found in the Spyder accessory catalogue, it looks like the adjustable backrest takes up quite a bit of the space on the rear sport rack, and that if a rider wanted to use the rear rack bag, there would be no room for it on the rack, as available space is already used by the backrest. Maybe I'm missing something here - I hope I am wrong, but it looks like if you wanted to go touring two-up, you would have to choose between having storage space or having a backrest for your passenger.This makes absolutely no sense to me. Please tell me I'm wrong about this, because I cannot imagine what the designers were thinking of, if this is the case. As a long-time sport-touring motorcyclist, I am acutely aware of the need for luggage space as well as passenger comfort. I am flabbergasted that BRP designers appear to have sacrificed one for the other. Any thoughts or observations on this?