In what way does it f**k their coat,It has no ill effects on them at all I,v clipped dogs for 20 years and it grows back exactly the same the only thing is I dont get shedding in the summer do you often suffer touretts or are you a boy who says the first thing that enters your head.
dead on mate it doesn't harm their coat i like to clip a feathered dog in summer months as well
mind you i don't clip my own hair in case i fcuk it up i only use the finest shampoo's on it for that "just stepped out of the salon" look