[maonnjtip]

I have a border collie cross and he had to be done because he was trying it on with everything he saw mind you he still does it now but more for dominance.

He looks a beautiful dog and I dont think I would have him catrated unless you thought it was causing a problem. Like you said, I wouldn't think anyone with a bitch that was on heat would take them to shows because there are bound to be other uncastrated dogs there.

Even though you don't have any plans on breeding him if he does do well you may want to carry on his line in a few years.