I have no idea how I missed this and I'm sure I'm too late in helping but I may not have been much help anyway considering we breed for show not pets....When raising show puppies dicipline is at a bare minimum because you never want to punish too hard due to the fact that yelling at them breaks their spirit.....
To make a long story short this is how I potty train! lol...I hire a profession named "Mr. Bissel"


I've found they grow out of the peeing stage around 4 months old....BTW, you have a dog that is a cross of 2 very stubborn breeds lol....He'll get it whenever he is darn well ready to!
Here is my potty training tool...