I'm back! My intention was to go down to 60 GI but I'm waiting for the 19t cog to arrive in the mail for that to happen. In the meantime I slapped a 20t on that was laying around. That puts the gearing at 57.7 GI. I know, what a wimp but I don't care. I'm basically riding my age in GI. I went for a 60 mile ride where the beginning and end have major hills. The hills, both up and down, were a breeze. Of course, I wasn't blasting down the path at 20 mph on the flats either but that is no longer a concern.