Pyro Pedal Platforms

Anyone used these?

I was thinking about trying them for kicks at a local sprint tri. It would be interesting to see a 15 second T2.

I have seen an AG DU Worlds Champ use them for short races. They seem a little awkward, but not too much. I did immediately rip out the D-ring stitching my first time trying to cinch them and resewed both D-rings as they are cheaply made.

The cleat position seems too far forward, even at the most backwards adjustment.

Any have an experience and tips?

How tight a fore-and-aft adjustment is advisable?