Notice
The harmony section from bars 70-108 is comprised of a main guitar with another playing an octave higher. Then a new guitar comes in playing a third harmony. Then a last guitar comes in playing an octave higher than the third harmony guitar. Because power tab limits the number of staves and guitars, they have been combined to help readability and therefore you should adjust fingerings accordingly when trying to play them.
The harmony section from bars 153-160 is similar to the above. Because there were so many guitars, they were combined for readability and therefore you should adjust the fingerings accordingly when trying to play them.