Just got back from a 4869 mile trek from Arkansastan to Tacoma, WA and back. Before I left, I had both Front and Rear tires replaced with Dunlop E3's. While on my way there, about 40 miles out of Twin Falls, ID, I'm just cruising along and suddenly the highway starts to make the back end wobble around--well, so I thought it was the highway.....Anyhow, it gets progressively worse and my mind is thinking, 'new tires....can't be a flat... there is nothing in the road that I hit.....Hmmm...??' Of course, all this is going through my mind in a split second, and the bike is very rapidly becoming uncontrollable. So I let off gas, pull in clutch, shaking is almost throwing me off the bike, I hit front brake-- shaking gets even worse.. Now, I am just seconds away from becoming highway fodder, and the semi truck I just passed is watching all this and mashing his brakes as well. So, I just squeezed the brake as hard as I could, fought the good fight and got her off the road. I inspect the tire, and no nails, holes, etc. I get out my 12V compressor and air it up...... Comes right up!!!! Now I'm really wondering.. then I see it.. Valve stem is split. Seems the Indy does not routinely replace valve stems when replacing a tire ( he does now after my phone call!). So lesson one, when replacing tires, ENSURE they put new stems on as well, don't just assume they do it.. Now, for lesson two. Stopping the bike with a flat rear tire. The MSF says to use the brake on the wheel thats not flat, saying if you brake on the flat tire, it may unbead the tire, and make things worse. Sounds OK to me, but why when I used the front brake only, did the bike get even worse on its shaking? Is there something I am missing in case this ever happens to me again? I will admit, I just knew i was gonna be plastered all over the highway, and it was gonna hurt! and to be honest, it scared the bejesus out of me as well.. Any input?