New bike. Kind of jumpy on some of the rear cogs, so I thought maybe i'd try friction mode just to see if rear der. adjustment was the issue, and not the new (sticky) chain. But when I twist that little ring to friction mode, it still acts indexed. It is a *bit* more frictiony, but there are still the spots where it grabs. Am I doing it wrong? I pull the ring out perpendicular and twist in the direction of the "friction" marking until it doesn't seem like it goes farther.