So the only technically correct answer is to have more than one flag halyard on the stbd cross tree? Although I generally have to improvise with the kite halyards anyway! I must confess to flying the club burgee under the ensign on the backstay. I hate those flag staffs that stick out from the pushpit, particularly when they obscure the helmsmans view or the sternlight! BTW, is there a good online list of two letter flag codes? and are they interantional or just HM Navy?