E-collar using Lou Castle's methods
I have a question regarding Lou Castle's e-collar training. I read through all of his training instructions on his website and I think his methods are very well written and will work well.
However, I am a little confused on how to use this type of e-collar training with a dog that already knows and understands the commands. Since Lou is explaining how to teach "recall, sit, down" using the e-collar, how do I use it to reinforce the commands on a dog that already knows "recall, sit, down"?
Also, is the e-collar ever used as a positive punishment tool to reinforce / correct the dog if he/she disobeys a command (after the command is learned)?