Been using tubulars consistently on my PX-10 for about a year now and am enjoying the ride, for sure. I've switched tires a couple times on each wheel. The last time, I didn't apply glue to the rim, since there's a pretty good buildup of old glue on the wheel. I only applied glue directly to the tire. Seems to be holding just fine and I don't find any loose spots. Any reason to be concerned about this? Also, has anyone here ever had a tire come off while riding from being under-glued?