Its really risky, I mean in a wizard or sage class duel, I better be stopping all the frost divers and stone curses I can because I'm a goner if I don't. However, being able to hit such high mdef with the wings on can prove pretty darn beneficial. I just think the wings aren't worth it tho in the long run, its really hard to stop every spell that a wiz or sage will throw at you after awhile ^_^
I actually thought Flower Wings should have another version be 10mdef and have a slot, make them a little more difficult to make of course too. This is basically making anyone able to wear silk robes if you did this and would be kinda cool.