Fix or replace in-line jagwire adjuster
 

I just bought a 2006 OCR 2 ( Tiagra STI ) with in-line adjusters. The FD adjuster seems to work only when it feels like it. Otherwise it just seems to spin with no effect. I read the thread about putting tape on the cable end but that didn't seem to help much. I also have a OCR A1 with 105 STI and barrel adjusters attached to shifters that work great. Can the in-adjusters be fixed, replaced with new (better) or changed to barrel adjusters attached to the STI housing.