I had an idea for the mount. Don't you think it's annoying when you ride a mount and your robe goes right through it? I think that you should be able to decide if you want to sit side saddle or if you just want to sit regularly.
I rarely notice clipping when riding mounts anymore but this feels like using a flamethrower to cook an egg- the easiest and least complicated solution is for KI to just fix how the clothing behaves while riding mounts. Easier, still, is ignoring the fact that clipping happens as a result of problems that just aren't worth it to fix.