Hi Dan
I hope your collie is pretty and sturdy, email pics please, One of mine is a year old now, he is a smooth coated tri, his mother came from Wales and he is working really well. If I had enough room I think I would have another as Mist is nine now and refuses to work! she has taught Moss well though and when he gets a bit carried away and doesn't listen to the whistle, she fetches him back.