That light already has a good amount of 660nm, I don't see much reason to add more. Far red and uva/blue ar much more interesting to target for supplementation imo. Try to get it well spread out though.
The blue/uv response and the far red response kind of work against each other: blue means shorter plants with a bit smaller leaves and longer ripening time, far red leads to a bit stretchier growth and bigger leaves, also throws a bit of heat on the cannopy. Blue also helps increase transpiration. If you manage to balance them against each other you should see increased growth and plant health and the plant reaching a fuller genetic expression.
The 650r is really intense, especially underneath in the hot spot. Remember you have to adjust wattage/intensity with autos cause you're giving them more hours. I doubt you will ever need all your watts for autos and that you're fairly sure to see unhappy plants under max intensity. Less is more.