Well what would you call over driving my 400 watt metal halide then. I am currently driving them at 440 watts which produces the bright blue look we strive for when running a Radium Bulb. Sound like the same thing to me, alls they are doing is pushing more into each led which gives brighter colors. I think you are hung up on percentages.
If you have the ability to run the LEDs at a higher power then great, like your Radiums. But I find it hard to believe that the whites can only run over 100% if the Red Channel isn't running at full power and the unused power can be redirected to the other channel. Also, if they are being overdriven, then doesn't that heavily cut the life of the diode? I would assume they're not being overdriven, rather that they're all mildly underdriven until they got over "100%."
Am I expected to believe that the power supply is so closet matched to the 0-100% usage of all the channels that it can only run some of the channels at their true maximum potential, if there's free, unused power? Why not just match the fixture with a power supply that can drive all channels to their maximum, healthy and efficient capacity?
The point is that this is a gimmick. The concept of overdriving with MH and with LEDs (based on how much each channel is using) isn't a realistic comparison.
I understand your point, but if you think about it, there's no logical reason why this concept is anything more than something to catch the eye of a naive novice. IF the light has better LEDs, a fuller, more useful spectrum, runs quieter or has various other new or improved features, then sell it with those, not this bogus concept.
Again, this is just how I see it. If you are impressed by this new concept, then by all means, I'm sure it's a solid fixture.