| If they're the same make and gauge of strings, you should be able to adjust it with the strings you have now. You don't ever want to do it with no tension because it won't give you a true reading. Unless, of course, you own a Fender that makes you unbolt the neck to adjust the truss rod.
I I should mention that if it currently plays fine with the strings that are on it, just leave it alone. You can adjust your stuff too much and needlessly complicate things. Likewise, cleaning and oiling can be done too much, too. Usually just wiping everything down with a clean cloth is sufficient unless your fingerboard is unusually dried out (which it probably isn't) and your frets are tremendously filthy (which they're probably not either). |