PowerDraw is a great tuning for Blues players!
Instead of the confusing Richter breath change in the top octave, it maintains the same consistent breath pattern as the lower holes: draw note always higher than blow.
This means you can do easy, wailing draw bends up in the high range!
But the rest of the harp up to hole 6 remains the same, so all your favourite Blues licks work in exactly the same way.
It’s great for tongue-blocking octaves too!