My pup Buster is about 5 and 1/2 months old, and his hairs pretty shaggy. I clip the little strands that go in front of his eyes, but hes now shaggy all over, his hair about 2 inches long or so. Should I have it cut all over? Its hot here in Texas, hovering around 100 degree I think, so I just want him to be cool. Should I, or should I leave it to see if it gets longer (he's a heinz 57 so we dont know how long his hair will get)