with a slightly oblong chainring, where the chain goes from slack to tight, which is preferable - to er on the side of slack or tight? my chain likes to go from either zero slack to 1/2" slack or with the slighest adjustment of the tensioners from 1/4" slack to what feels like almost a full inch. with zero slack i get a little noise, but am i risking throwing the chain with almost an inch of slack? if that photo is any indication i would say i'm safe, i guess.