I'm wondering how to optimize my chain line...After installing a 56T before nats, I noticed the chain was pretty noisy, so my theory is that my chain line isn't really straight (my perception is that the chainring is slightly outboard from the cog)---and the larger chainring accentuated the friction, because it worsened the angle between chainring contact point and cog contact point.
Is my theory correct, or am I insane. Or, if I'm insane, could I still be on the right track (no pun intended)?
I was thinking of experimenting with different thickness shims behind the cog to move it outboard and achieve a straighter chain line. This is what I've done with road bikes in the past.