I have the UK Chocolate Workman's with the modesty and I find them to be more trouble than they are worth. They make the kilt lay wrong and try sitting with them snapped!

I honestly never worry about flashing anyone. The material is so heavy that it hardly flys even in a good stiff wind. So. I stopped thinking about it. The pleats always drop down when i sit even with my legs spread so, no worries there either. I think they defeat the purpose of a kilt and are better left off. Just be reasonable conscious of where you are and who is near when doing anything that might flash someone. For that matter, what are they doing looking anyway?