You may note on the Crenshaw video. He mentioned not working his dog to long or hard on his tread mill due to the dog being damp. Due to the weather being damp and one can see it had been raining or was raining. You might also note on his long porch along with his tread mill. He had a e- mill.

If one has enough land to build a proper building wide, long and big enough to accommodate proper work equipment. You will not need to work a dog in the rain or very bad weather. I too have nothing against walking a dog, but for me and each to his own. Would not walk a dog in the rain or foul weather. If one has mastered the technique of man and beast being able walk or work in foul weather. My Hats off to you.

From what I observed over time of how dogs were worked. The interval training with in between sets of short walking is the safest way to go. I really liked what Robert Lemm was trying to demonstrate on a You tube video. Was a lot of info. to take in with a short 2 hour video. Just using his tread mill and a e-mill along with his mill technique of running intervals would keep your dog strong. Till the bad weather cleared and you go back to the Jenny or road work and walking.

But as Limey stated if you are sitting home and the dog is not being worked. Those lost days if to many can not be made up and will surely put your dog at a big disadvantage.

Luck has no place in any serious athletic event. The trainer has to be prepared for all variables in the training schedule. Murphy's Law is always present to try and screw things up. Cheers