I trial spaniels or at least try to have watched a few lab trials, and did have a promising dog that I was going to run last year, but a few friends who trial labs put me off as my dog was a hunter and natural gamefinder with lots of drive and was not able to be handled on the penny, he's hard to stop when the nose goes down, a lot of them like straight line retrievers as apposed to hunters, but it's horses for courses, you won't know unless you try but would be good to go and watch a few trials and see what you think for yourself.
Nicola