I have two guitars. The instructions that come with one of them say that you should remove all the strings when changing them so that you can wipe off the fingerboard, etc. The other one says to always change one string at a time. Ya pays yer money and ya takes yer chance. I usually tune down all of the strings on my steel string guitar so I can part the strings and reach into the sound hole and push up the *@!! buttons that hold the strings on the bridge end. Then I take off all the strings, and put them on under lower tension--about a fourth below pitch. When all the strings are on, I tune up the guitar. On the other hand, with my nylon string guitar, I take off one string at a time, put on the new string and bring it up to pitch. Why? That is the way I was taught by the two different teachers for the two different styles.

Incidentally, some saddles have a little notch cut out for intonation correction. If yours has that it should face the nut and be under the "G" string.

If this thread were advertised as a stupid question, I would have considered it beyond me and not have resonded. It was the "really" that got me ;-}

Murray