Rotation or some kind of movement is probably not a bad idea and something to be looked at as we move forward.

Nobody, especially guys working at our level and with MJ, has any kind of solid handle on light wavelength ratios, etc. This all needs to be sorted out.

Even if you knew that plants like a ratio of 3 red to 1 blue of the amount of photons received, it would be very difficult to translate that into the proper ratio of LEDs used.

First blues put out a lot more photons then reds since the higher the frequency of light the more power delivered. Calculating this is very difficult if not impossible without a specialized computer program and better mfg. specs or access to a radio spectrometer.

My best guess is if you use the usual 3 red leds to 1 blue led, you might actually be delivering more blue light to the plant.

I suspect that plants have a great deal of flexibility to utilize whatever light comes their way and dicking around with light ratios may not be as important as many believe.