I'm not a fan of it on a flag, but mostly because the coat of arms gets lost in the wind, or when the flag is limp. I agree that the coat of arms is badass, and it deserves more than to just get slapped on to a bedsheet. It deserves to be really seen on mediums that make it shine! That's part of why I designed a PA flag that references the coat of arms without making it into a mess - ideally, I want people to ask about the flag and wind up interested in the COA's history.