Hi, I have Shimano Ultegra Bar-End shifters with a Tiagra rear derailleur and a 9-speed cassette. The cassette is 11-32 (the crankset is 50x34, if that matters). Shifting works just fine in friction mode, of course, but indexing is very finnicky. In particular, between the 3rd and 4th cassette (14 teeth to 16 teeth) and sometimes the 4th to 5th (16 to 18) it won't fully shift... just goes in-between gears and skips. Any ideas and/or suggestions for getting indexing to work for this set-up? I'm fine running friction if I need to, but would love to get indexing working.