It's been a while since I brushed up on the bit regulations for dressage. Shame on me, I know, but I was consistently using a bit that I highly, highly doubted would ever become illegal, and had no reason to change it.
The horse I'm about to purchase if her vet check goes well has been being ridden in a corkscrew full cheek snaffle. This was due to the fact that she was a bit strong when she first came to the barn. Now, she doesn't need it. And besides, she's going to have to get off it because I DO know I can't be using that for dressage (nor would I want to; she doesn't like that bit at all).
I tried her in a copper roller bit today, but naturally I can't use that one either. She was far too mouthy with the rollers anyway. I'm thinking she likes the copper though, so I'd love to use something with copper inlay maybe. And I read today that these are...legal now? It's my understanding that now two-metal bits are legal so long as they're smooth?
Korsteel Sweet Iron Copper Mouth Snaffle - Statelinetack.com
I was looking at that bit. I have a hunch she'd really like it. I'd be pleased as punch if I could find one with a french link.