One of our members,
Icemud, has done a far-red journal where he tested a few theories/concepts. He's probably tested/thrashed more different LED grow light products than many members have tested different strains, lol, and I'd suggest him as a (more than worthy) candidate as a tester for your products - both because of his experience with so many products and his huge wealth of related knowledge - but he's usually pretty busy, and I don't know whether or not he'd have the time. But he'd certainly remove the "grower talent" variable from the equation, because he drips talent and knowledge. And he'd be able to critique your products and make valid suggestions for improvement.
Actually... As I mentioned, he's probably pretty busy. But you might want to send him a PM to see if he'd be interested. Just don't tell him I suggested it because I pester him enough asking questions about LED technology as it is
.