sit

https://www.youtube.com/watch?v=7mz8o7NN8H8 On this video... was wondering if the ecollar stim he is applying should be simultaneous with SIT or do you say SIT, then nick immediately after? Does it matter?

My 5 month old pup is very very mouthy and excited with her bumpers, chewing, throwing in the air, shaking it. I would love suggestions on how to get her started to hold and bring it in on sit. She will hold sometimes but if I tell her to sit, she'll drop the bumper, sit and just stare at it. I...

I am fairly new to the retriever world. Very avid hunter and have a dog who is up to par on everything on the beginner level. He is ready for hand signals but first he needs to be great on "sitting on the whistle". What are some drills and things I can do for him to grasp the idea? Any and all...