It is also possible to use the cross harp position to play the G major pentatonic. Remember that the major pentatonic scale is like a major scale with the 4th and 7th degrees omitted. Shown below is a comparison of the G mixolydian scale and the G major pentatonic scale.
Here is the G major pentatonic scale played over two octaves. Once again, mentally name the scale degrees as you play. Do this until you know which degree you are on as soon as you play it.
Here is the song Amazing Grace played cross harp in the key of G. All of the notes of this song come from the G major pentatonic scale. The bends from B to A on hole 3 can be tricky, so take care with them.
Here is a more complex solo using the major pentatonic scale. Learn it and then try using the ideas to create your own licks from the scale as well as improvising with the Country Jam-along track at the end of CD2 (page178)