Nothing wrong with that mate looks bang on to me certenly a good way for a busy man to make back time and keep dogs fit all this bollocks I walk X miles a day X amount times a week I think majority is bull shit unless you don't work or Ok if your retired I suppose. I'm a cattle farmer and my dogs run be side my truck 7 days a week. I couldn't ever walk them to reach the fitness they are ,,,the way I do things...watt works for 1 chap won't work for every other .,over and out