I think Pocket's combination of heel up, heel down, [ in stilettos ], is positively ground breaking! Seriously, the man is a genius!!
And imagine the percussive posibilities if you nailed a few bells to the heels!
Mind you, that would depend on how much you paid for the shoes. How much did you pay Pocket?
Alignment is something I want to throw into the discussion. If there isn't a comfortable 'through line' that follows down the skeletal structure of the leg, through the knee, ankle and along the foot, then injury awaits. A flat bottomed shoe with flexibility under the ball of the foot would provide a good conduit; but how the 'signal' arrives is just as, if not more important, I'd say.