Just a note. I have a bunch of those wheels, from Derby Worx in my case. They never ran as fast as JE's wheels back a couple of years, and those from John are even faster on the same car. JUST IMHO. My own opinion is that the holes screw up the air flow, even though they are lighter. In bicycle racing, they also use non spoke rear wheels and front wheels with a lot of fewer spokes in the shorter speed events.
Someone tell me if I am wrong