Stripping Deerhounds is a more contentious issue than Working Ability!!
I strip my dogs as required. I stripped my 13 month old bitch out (took out all her puppy coat) 4 weeks ago. I could not be happier with how her new coat is coming through. Beautifully crisp and black, with a lovely soft wave. In another month or so, she will look great.
I also strip dead (red or brown hair) out of my adult dogs as needed, perhaps once or twice a year. I will run a Mars rake through them every few months to remove dead undercoat.
I also pluck their ears and excess hair from their legs, if showing.
One can easily go overboard with plucking and stripping and it should be done in moderation.
You can also "roll" coats, but that is a whole thread on it's own.
Some like it, some don't. It's up to an individuals taste, but personally I cannot stand the look or feel of dead coat on my dogs.