The tire clearance to the cage on my old X7 3x9 front derailleur was pretty close on my Jamis Dragon Sport when in the granny ring. I just upgraded to a x9, and the slightly wider cage is even closer, maybe only a millimeter or two of clearance. The crank and BB are original. Has anyone successfully modified a cage for more clearance? I'd like to stay 3x9 if possible, but would consider 2x9. Different crank and bottom bracket? Any ideas?