I have a neutered male GRD with a fair amount of coat at age 2. His back can be quite wavy post bathing. I am interested in acquiring a dryer that (once I develop some technique) can straighten the waviness on his back. I am leaning toward the Kool Dry (Xtreme or regular) or the K-9 III. I have a concern regarding each dryer. Kool Dry - Does it have the power to straighten the wavy back and how long will it take? K-9 III - Runs on 18 amps, I live in a 60 year old house with mostly 15 amp circuits and am concerned the breakers will be tripping. Thanks, y'all. And, oh yes, we're not showing. He (the dog) just wants to look his best.