I can only get 8 rings but being color blind probably doesn't help that. I think full curl, from that angle but not positive on that front either. I'd need a lot of time watching them in the field before I'd feel comfortable. That's the one time I feel like having a guide would be great, just to be with someone who looks at alot of sheep and doesn't need the time I do. I'd still go DIY if I could though.