Thanks for the comments.
I should have mentioned that my wonderful wife has told me she loves the way I look in a kilt. She has requested I wear my fly plaid as she also likes how it looks with my Prince Charlie. As an officer and a gentleman (USAF, Ret), I can't turn down a request from my charming wife. So, I will figure out the best way to wear it with my Prince Charlie. So far, it sounds like adding a pin or two to strategic locations may be the ticket. Also, while sitting, once it's adjusted, it doesn't seem to pull on the jacket that much.