Great advice guys, thanks alot.
This is his exercise schedule. Mornings is a brisk on lead walk, after i give him 15mins to do his business i bring him to heel and we walk non stop for about an hour round our village. This doesn't effect him in the slightest and he's ready to go again when we get home. Me on the other hand, i'm knackered!
He gets his off lead walks in the afternoons, If we're just conditoning we're just down the kids palying feild and he free runs for about 30mins to an hour. We do distant recall training here and play retrieve games etc to tire him out. He gets pretty tired