My analysis here may be faulty, but I was thinking about Lumi and Laddie's competition history. At most of the levels we have competed, the story was the same: a series of unsuccessful attempts, ongoing training, and finally success.
Along the way, I'd occasionally receive advice that my 2Q approach would never succeed, and I certainly had bouts of discouragement, even despair. But in the end, my dogs earned one title after another. Some of the problems that seemed insurmountable at one time are now but faint memories.
I cannot be objective, nor do I have the experience to accurately evaluate Laddie's ability, but to me it appears that he has not yet reached his full potential as a 2Q retriever. I think I owe it to him to continue our efforts together, both training, and competing when I feel we're ready for the next try.