On AFN, there is a Quantum Board thread, unfortunately, its been taken of by people running cheap, iChinese copies. One person made the mistake of saying that they are just as good as HLG boards. That did it, I offer to send a board to anyone who would do a side by side comparison, including measuring board thickness, quality of assembly, and measuring light output at a given wattage.
The person who accepted is someone I respect so this should be interesting! I'll post hte resultys when it happens.