I remember that now that you say it. To be a doctor, right? I just always thought he was part of the brains behind PES formulations.
IIRC he did help with the formulations and in house testing. PES also has a few PhD's on staff for R&D (BioChem I believe) so they will continue to put out solid products.
Cooper had mentioned awhile back that he would test potential formulations on himself as he had available to him a variety of equipment to monitor physiological changes in response to the ingredients
I know at our school we have:
a physioflow (to measure stroke volume)
A few met carts that measures substrate oxidation (via gas exchange) down to the .1g,
a DEXA scanner and bod pod to measure changes in body comp
And an Isokinetic dynamometer that we use to measure torque at pretty much any joint
And we had all of this available to us as undergrads for our own research purposes