lordmelton,
I've been considering filing 1/32nd off each side. That I ran past Clarus and they thought it to be a potential solution. I asked if I screw up, can they replace the 1/2" spade that it's originally fitted with and they said yes, at my expense.
Thing about it is that their spade is a "generous" 1/2" and thus having to remove a "generous" 1/32" each side wouldn't leave much spades forks.
Also of note is that the spades are military-grade beryllium copper that are specifically designed as "Spring-Tension" spade lugs, utilizing the copper's natural springiness to keep their shape so I can't bend the forks inward a bit to narrow the outer dimension. Beryllium copper is also toxic when processed in ways that create dust (e.g., grinding, machining, welding). Inhaling beryllium particles can cause fatal lung disease (chronic beryllium disease) and is a known human carcinogen.
This is a tuff one!
Thanks

