kazinvan:A friend of mine had his warranty revoked because he was a professional (dive instructor), White's charged him for a neck seal. They also took FOREVER to get the suit back to him and I recall him saying that there were other problems during the whole fiasco. Needless to say, service by DUI has always been good for my friends who dive with them. They always went the extra mile, especially for instructors.
It seems to me like you should take extra care with an instructors stuff as they are the ones who recommend a lot of gear to the students. I'm looking to buy a drysuit, after that story White's is no longer on my short list.
I think your friend is mistaken. I don't believe there is any warranty on drysuit neck seals from any manufacturer but I can tell you for sure Whites does not void a warranty because the owner is an instructor.
They take very good care of dive instructors for the reason you mentioned above.