Peter, forget the legalities, or Martin's moral responsibilities and any related stuff. If you want to hear real life guitar horror stories, talk to folks who have sent their instruments back to Martin and have waited months and in a couple of cases YEARS for a totally sub-standard repair. I know that some people will say they were treated great but I have seen first-hand well over 20 REALLY bad jobs. Do you live in an area with a qualified repair person? Someone who MUST treat folks right in order to stay in business. If you were in Toronto I'd send you to Bruce Dowd who does superb work, charges reasonable prices (a neck re-set is nowhere near 750 bucks) and gets the instrument back to you quickly. Here's a suggestion. If you or a friend or a relative is going to visit a fairly sizable town in the next while, check (perhaps through the Mudcat) if there's a respected repairperson in the area and get your guitar to that person. Even if it takes a week or two, you'll be much better off than sending it to a factory (warranty or not.) Good luck.