I recently purchased a new Fender Jazz...maple neck, and am curious to folks' experience with tuning the up a half tone and the effect on the neck. I'm playing in a Celtic Rock band which involves scottish pipes. To match they tone, I have to adust my tuning to a up...putting a bit of extra stress on the neck. Are the necks for a fender Jazz designed for this and if not to a re-tune after a practice or gig down to releive pressure? I had a precision bass back in the early eighties that had a terrible neck warp that counld never be fixed. I welcome any experience.