I was recently told that the braze on AX front derailleur is designed to work with its own unique braze-on bracket that incorporates a special cable guide. See here:

www.sheldonbrown.com/shimano1982/pages/13.html

I'm planning on putting this on a standard front derailleur braze-on.
Has anyone here successfully installed an AX braze-on front derailleur with a standard braze-on bracket?

If so, can you provide some info about how to make this work?

Thanks!