Hybrid bulks and Supermaxx susp. Slight binding

[JAILBIRD]

I am installing the FLM hybrid bulks into my Maxx and using a Supermaxx EXT suspention. The lower arms are tight so I know I need to do some fileing. Should I file the bulks or the arms? My thought was to file the bulks because I can always buy another set for pretty cheap, the Supermaxx stuff is getting harder to find and carries a higher pricetag. Is my thinking correct? Thanks for any help!

-JB