I don't know of anyone else doing a modesty system either but on my Survival UK i will put the toggles thru the eyelets and back thru the under apron to keep the lower end from flapping around. I've only bifurcated it once while on a cruise. I was on the bow observation deck and was taking a lot of wind. It created a vaccum effect behind me which caused the rear of the kilt to billow out and up enough that someone at the right angle would have seen the rear bumper. It never flew up but there was a lot of space between me and my kilt. I like wind