I for one would not have come to your realization until I came out the other end of trial and error. At least I did not buy into the Fijis- lol , and found zero benefit from Actinic bulbs over standard Quantum Grow bulbs, but that could be strain related.
LV has excellent results using basic GROW/FLOWER bulbs (as does BendMC on another thread, whose thread influenced me to get a T5). BUT as you point out, bulbs on the extreme ends of PAR will improve the result over basic bulbs, but they have not been promoted for horticulture until recently.
Plus, UVL now offers a 660, which should further improve tric production. I have one and can't wait to hit mid flower to drop it into my mix of FloraSuns, RedLifes, UVL AquaSuns and Coral Waves.
It does seem odd that Pr0f has been absent from his own thread this long, especially after developing a deep red prototype that he wants us to buy.
He did mention being sidetracked by induction fixtures, but they too need 630-660
BlueB If you don't like this threads' vibe, why not move on?