Dr Gildy,
I strongly suggest FF her. It will give you a handle on the dog you do not have now. Right now she is retrieving for her and you. Notice who is first in the equation. After you FF she will retrieve for you. The difference is suble but you will have a better and more confident retriever. I used to course (hunting game with sight hounds) when I live in the West. I had greyhounds. I told a training buddy I was sure a greyhound could put pheasants in the bag, one thing led to another and we bet dinner for the two of us and our wives, I had 6 weeks to get ready. I had already shot pigeons over one of my dogs so I was sure I could do it. I was expecting a 6 weeks force breaking session, she was so soft I had it done in 2.5. I couln't believe it. I assure you, you Ches is tougher than the greyhound and springer spaniel I force broke. Don't let her set protocol or standards of retrieving. Teach her to retrieve for you. This will pay huge dividends when it comes time to teach her multiple marks and blinds (which she should be getting ready to do at her age). By the way I won the bet.

Dr Fatguy