I went to 15-20 psi on my power bleed with the Palm Beach. It was a vastly superior experience to the lazy bleeding that occurred a couple years ago with my Glenbrook using the vacuum bleeder. The fluid moved with motivation, and the transition from dirty/aerated to clean/consistent fluid was sudden, distinct and final. Pedal felt pretty good, though I've got a bit too much take-up at the rear shoes still. The second pump is very firm once the shoes settle in to place. I'll have to adjust those.
I did notice that my MC needed bench bled A LOT. I pumped until I was blue in the face, and the bubbles stopped. Then, I loosened the vise, changed the tilt angle of the MC, and pumped some more...MORE BUBBLES. Ugh. It was a finicky one. I think I bled it in the nose-up, nose-down, and nose-up positions before I was satisfied the bubbles wouldn't return. Then there's the matter of the combination valve, and using mirrors/lights/borescopes to ensure it was in just the right position.