Bingo:
undo the locking nut, slacken strings, adjust intonation, tighten strings, lock nut, test, undo the locking nut, slacken strings, adjust intonation, tighten strings, lock nut, test, undo the locking nut, slacken strings, adjust intonation, tighten strings, ock nut, test, undo the... well you get the idea!
Have fun!
Matt