Looking at several litters and wanted to find out about some of the studs involved. I have heard a lot of good Grady pups out there. Can anyone tell me if they have any "POW" Hardscrabble Powder My Buns puppies and how they are and also Tubb puppies that are out there. How they as far as drive, speed, trainability, etc. Just fishing for information so when I get ready I will have an idea which way to go.