I've been reading about how to adjust derailleurs and actually followed the by feel method pretty well. I set the bike up on the rack, put the chain on the smallest gear and loosen the tension on the cable. Up click one time and start cranking in tension until she shifts. I reiterated this several times until everything felt somewhat smooth.
But when I take it out on the road, things seem kinda ok but it's double jumping gears up and down or it decides it doesn't want to shift at all. This is all 10 year old Ultegra and I wonder if the shifter itself has gone bad?
Thanks for any ideas!