To get a «dry mouth» you have to intentionally be breeding for a different head and
jowl shape than a proper Newf should have (and even then, there's no guarantee a puppy won't grow up to drool) which is a sure sign of a bad breeder and it almost guarantees that you're not really getting a Newf.
Breaking standard and breeding specifically for head and
jowl shape (against standard especially) means that they aren't going to care about the rest of the breed standard.
Not exact matches
The slightly oversized
shape is perfect for my long yet round face, balancing out my fivehead and
jowls nicely.