This thread surely is old yet won't die, especially as it seems like a beat down on Suntour.
Funny that even those long in the bike biz or game continue to critique Accushift. I've yet to have an issue and simply follow the instructions. Many shops and dealers pooed Accushift because they didn't heed attention during shop class, rarely read documentation, factory bulletins and also because the pricing was far lower than Campy and Shimano, they automatically called Suntour 'cheap'.
I do have the lowly 4050 Edge group with factory Dia Compe supplied brakes and oval rings on a top flight Zunow. Osaka mama, bulletproof index shifting with more brake leverage than I really need. Love it!
BTW, Italian marque Modolo made the brakeset for Suntour Ole group.
Adios Amigo