Braze on front derailleur misaligned
My front derailleur is currently not aligned correctly (cage parallel to chainring), which is causing some shifting issues at the moment; in particular the chain is "over shifting" off of the small chainring. When I tighten up the bolt that attaches the derailleur to the braze-on, the derailleur becomes misaligned. So, my question is how do I properly align it? Does the braze on have to bent, or do I find a way to put a shim between the derailleur and the braze on, or do I try to bend the cage body... Or is something else?