I don't think the brim has a stiffener in it yet, otherwise it might be less curly. Right now, though, it reminds me of Robert Urich as Spenser. That wouldn't be a bad idea, something for a more 20th Century fun crowd. I know there's IDPA, but that doesn't have the same fun and attitude as SASS.
Maybe something like PEACE - The Private Eye Action Competition Experiment. The shooters emulate their favorite literary or police cops like Mike Hammer or Tony Baretta. Trench coats and pork pie hats with a big .45 or a snubby .38 anyone?