So I recently chopped my old BMW R1150GS in for a 1200, and had the Touratech luggage rack fitted so I could swap my existing Touratech Zega bags onto the new bike. However, since riding with the bags for the first time, I noticed the 1200 is much less stable with the bags on than the 1150 ever was, the bike wanting to weave at anything over 110 km/h, whatever setting I used for the ESA damping. On examining the location of the bags when I got home, I noticed that they are probably 5-10 centimeters (2-4 inches) further back than when they were mounted on the R1150GS. This, I suspect, is what is causing the instability, with the weight much further back on the bike. I intend to simply remove the pucks, drill new holes for them, and fit the existing set of pucks for the bags. After that I should be able to just seal up the old holes (screws, washers and sealant) and I should be ready to go. Has anyone done this before, and if they do, is there anything I need to look out for? Can I reuse the same screws holding the pucks on now, or should I replace them? Will they be as strong as when I fitted them the first time? Are the holes left by the old pucks easy to fill and make waterproof? Thanks for any suggestions you have!