We used to raise Saints in Colorado. There is a huge difference in the amount of drool from one dog to the next and they do genetically pass it on. For instance, we had one named Buford, I can't remember his full name, he was my moms, and there was never a day that drool wasn't spewing in long strands from his mouth, hence the term wet mouth. Brandi on the other hand drooled about the same as a lab, maybe a little more. No they aren't "dry mouthed" but yes there is a variance from dog to dog in the breed. I agree with u, they need to be air conditioned and very much a part of a family. They are not meant to be left along outside. Although I do not own them now, they are still my favorite breed. Just don't have the right conditions.