What happens after 12 ee on weapons?

Correct me if I'm wrong, but I think that you can only use prots on an item with 11 or less enhances. (Making that use the 12th). That person either used 3 enhances w/o prots, or some new thing I'm not aware of. Theoridally, yes u can have 20 ees, but u can't prot them, making it huge luck, and ur item kabooms 90% of the time

Ok so I am looking at this

http://global.hidden-street.net/items/mi...ent-scroll

I always thought these 3-star scrolls worked on items that never got enhanced, similar to the Silent Crusade's 2-star EE scroll.