Looking at a couple of GSA's that have the LARGE cases (luggage) but I don't really need anything that big and would really like something closer to the expandable BMW cases or Jesse's in size. With that in mind I have a couple of questions: Does the large GSA system case (w/ drop down tray) fit on the Std. GS's? How hard is it to fit the expandable GS cases on the GSA? Is there a market for people wanting the large BMW cases? I'll try to find a pic of the case system I'm talking about asap. Thanks. Edit: OK, searching for a pic to include I found a '04 GS std. with those bags so I know they fit. Now the only question is how much of a market is there for a swap/sale?