OK, joking aside, I had an RT1150 that did the same thing, the dealer swore up and down it was the aggressive crown here in the PNW that caused it, funny thing is it doesn't happen on the 14 or any other bike I've owned. Something is off on the geometry, don't accept no, get it fixed. I will ask, does it do it without the bags or empty bags? And you have shucked the POS 'Stones, right? Another thing that you could check is the front, did the tire get properly mounted, meaning proper sequence for tightening axle and pinch bolts? I think that is where I would start looking, any odd tire wear?