I haven't.
I am now switching from opaques to sheerer stockings for work. I occasionally have to wear black/off black but I find I so much have to touch the stockings to put a snag in them. So by the time I put them on, they have little nicks up and down them. I even moisturise my hands before I put them on.
I don't mean holes or ladders, but just a tiny little nick/line which spoils the line of perfection. It is dark tights that is the problem, I can wear nude/tan ones as it is less noticeable if I put a nick in them.
How do other ladies have such perfect sheer stockings 
. Any advice/brands gratefully received.