Ok, called current again and a couple of things. First, with the two fixtures I was advised to start at about 40% on the whites with the three sps frags and then tailor to my like with the blues and work up to maybe 70% with 2 fixtures. Also, they advised probably mid level to start with the particular types I have a to not sick them. They also advised(as I inquired) what percent they guessed it increased the brightness with a second fixture, that somewhere between 60 and 70 percent in actual par value. Which given the 120 degree optics(raw diode from what I remember) isn't bad. Now if there were 90 degree optics, I'm sure it would skyrocket like the breeders and others with 90's.
So from my math and the little graph, the 400 original(marginal) par, the increase would take it up to 640(60% as I'm taking lowest percentages). I really wish I had a meter to accurately give values, as I'm just going off the minimum values given.
Ok, those are my findings so far as I will continue to inquire. But im going to watch the frags closely while time passes and keep the updates as time goes on.