Started with the install of the Viking bags I purchase recently. Got the old bags off and it looks like it's going to be a snap of a install as the inside of the bag is flat (with a couple grooves). I've been doing a mock up sitting the bags on different height boxes to get a feel on what they look like where. It should be just a matter of doing one side where I want it, drill it, then put the bags back to back to mark thru the holes for identical location. The original mounting bracket are at a slight angle in towards the rear so I haven't decided to use a space to bring the rear out away from the bike or not. Decisions decisions before I drill but I think they will look good and function much better than the clam shell originals.