I had the same problem. I got home today from a weekend trip, 1050 miles, and was a half a quart low. My light came on this morning 3 hours from home. I searched the forum for oil consumption and found your thread. I had just installed graves block off plates before the trip and today when I peaked under the air box I kinked the crankcase breather tube in two places. I straightened it out and I'm crossing my fingers that fixes it. Please keep us updated on yours.