Has anyone tried any of the KoalaSwim, Flying Vs?

Whilst they are not sold as a locking harness it looks like it would be fairly easy to change the spandex ties on the KoalaSwim Feminizer Flying-V designs to locking straps.

Has anyone tried any of these designs?

https://www.koalaswim.com/feminizer-extreme-flying-v-metalspandex-suit.html

https://www.koalaswim.com/feminizer-flying-v-epic-change-transformation-suit.html

https://www.koalaswim.com/feminizer...andex-male-to-female-transformation-suit.html

Having tried thier inverted design ball trap devices I am definately interested in the Extreme model.