I though cannabis saturated at 1050umol/s were did you get that info? If I'm correct you might be wasting 50% of your light. Now lets move on to the 600w objective. If you want to compare led vs hid just buy a gavita pro 600 and do a side by side with the ss260 in a 3x2... I would love to see that one.
And please refer to your unanswered threads I'm curious
I am aware that you have been in contact with Amare, so best to get your answers directly from the horses mouth
Other growers are doing side-by-sides.
Again, Amare can direct you