Thanks for your reply Justin, I've had him to the chiropractor a few times, and aside of agreeing that he is sore in the lower back, and the possibility that the harness could be causeing the problem (however he admits he knows nothing about sledding/sled dogs) he can see that fred runs free and relatively straight when lose.
we were going to x-ray his back, but I didn't have enough money last time he was knocked out, and don't want to knock him out just for that. the vet has watched his movement both in harness and without, but he doesn't do it just walking in the harness. it is a very wierd motion that he sets up and I keep trying to get someone experianced to take him out to see it and give thier opinion, but no one will. (people who might figure out what is wrong that is, others have taken him out, and agree it's wierd, but have no idea what could be causeing it)
we always do a good poo walk before the race, he understands what that is for and always goes at least once, if not twice, he may or not pass anything during a race, and if he does it's always a tiny amount (not a proper poo) the first vet I consulted decided it was a nerves issue, and suggested a natural calming remedy. in the normal run of things he is so laid back and even at race meets, if you asked anyone, they would tell you that my dogs are the most placid at a meet....) he does tend to get sloppy poo at a meet tho.
if I am walking him in the harness, and he is pulling, I can only drag back to a certain degree before he stops pulling.
I've spoken to sandy, but (and I agree with this) the harness fits fine. (ralph checked it at goldseekers last year) I think it is just the style that might???? cause the issue. (well actually I don't see how the harness can be causing the issue either but I'm desperate at this stage.)
The only suggestion that others have made, is to try a different style harness, and see what happens. I'm going to get a saddleback harness and try that, and, dependant on the price, the one from norway and try that too. I don't see what else I can do.
Thank you
Heidi