hily, as you know mate i am not a spaniel man, although i have owned and trained a cocker x, but i know there is a massive difference for the dogs between a driven shoot day and a day rough shooting.
My Lab bitch hunts well with more staminar than most labs, she can beat on a driven day and do a bit of picking up with plenty of energy, as you say there is regular breaks and time to regain there energy and she takes these days in her stride, but a days rough shooting will take it out of her, she will work at a high tempo for 4 hours non stop then start to slow down which i feel is not bad when