Naj, he's primary role is as a peg dog, bit of an experiment, my brother and I brought very well bred ESS (different lines) each and really focused on steadying them up for the peg. Our syndicate shoot is largely woodland or plough, backing on to woods, so ideal for a spaniel. As it was he's-first season I didn't send him for runners, although he did pick heavily pricked birds.
Throughout his on going training, I've quartered him. I use two commands "lost" - looking for a shot bird, "seek" pushing birds up with drop to shot or flush. He is definitely more calm and focused on the lost hunt than the seek hunt. He's a big lad at 22kg's and covers a log of ground, 6/8 paces and he's out of shot range, so you have to stay on top of him.
The experiment has worked, as a peg dog he is first class, he came away with me on a couple of fairly big days, had birds full flapping away just feet from him and watched as the picking up dogs collected from the end of his nose during the drives, 100% non slip.
I'm currently contemplating another dog for a summer project, not sure which way to go yet!