I wear a kilt pin on my PV kilts because I do need the extra weight to maintain modesty up front. People still get a view of my **** from time to time if a sudden gust catches me off guard or if my arms are full.

My lined Pittsburgh Kilt would probably keep me modest all by itself in gale force winds. I've been outside in it on windy days and I never feel as if I'm close to being exposed. So I don't wear a kilt pin with that.