Hi, I know
PT method and it CAN apply to any tuning... but best if all the tunings are variations of the standard tuning... such as half step down, whole step down, dropped d.
It could? theoretically work in other tunings, but like ALL other methods this would require some minor to possibly and maybe even likely major alterations for PT to work.
However, PT is more than just a method, which it is a method, but its also a mindset, and this mindset works in any tuning and on all instruments. This mindset is one of the most valuable parts of the PT method and it is demonstrated along with the method on the dvd that comes with the package. Well worth the money.
Brian