I've been to one here in Canada, Fergus in August. I started of in a respectable desert camouflage FK and within 30 minutes was fitted out in a black leather RKilts. Sorta spent the rest of the weekend in leather and got several positive comments. No kilt checks though but if you knew me you'd know that that's typical . Wear what you want and remember that being part of the rabble you will know how to dress properly in a kilt.