I feel like a newbie for asking this but I built up a new set of wheels with DT Swiss R1.1 rims. These rims are incredibly hard to mount a tire on. I am using the same tire Vittoria Rubino tires that I use on other bikes and they have proven fairly easy to mount. Anyway after 2 rides on the new wheels I had a flat which fortunately I found in the garage a day after the ride. After an epic battle lasting over 15 minutes I was able to get the tire off. Reinstalling it was hard but did not involve as much cursing and bruised knuckles. My normal technique for removal is the pry the tire off the rim, hold the bead with my thumb to keep if from sliding back on, and then slide the lever along the rim until enough is unseated. With these new rims from hell, it takes insane force the get the lever to move along the rim. Right now I am a little apprehensive about riding this bike because I don't want to deal with this in the field. Any ideas on improving my technique?