Rear derailleur adjustment
I have an 8 speed Ultegra rear derailleur and 600 brifters. The basic adjustment to get it to downshift from top gear works fine. However, at this cable tension the derailleur won't downshift properly in the middle gears until I tighten the cable more. However, at this cable tension I get some rubbing noises in some gears. Anything I can do besides set the cable tension so that it will shift in the middle gears?