Hi all, the last 15 years I have had short-haired dogs who did not need haircuts (because they shed like maniacs), but as of January I have a Cocker Spaniel (9 yrs) with long gorgeous ginger fur. I live in the southern US so it gets HOT in the summer. I was wondering what the ideal coat length is for enduring the heat (I mean I know better than to take him out in the hot part of the day, but still, summer is summer.) I have heard conflicting things about whether a certain amount of fur (how much?) insulates the dog from heat or whether it is best to shave down. Any ideas as to the the best hair length to keep him comfortable and safe?