I am in the same boat you getting back into it, my break was 20 years.
I have done a lot of research and have come to the conclusion that my 48'' 90g i will use the Kessil 160n and i might even go with 4 because of the narrow beam. My thinking is if you are dialing them down because they too bright then i shouldnt need such a powerful fixture. Also if the par is so well balanced from front to back add to balance side to side....
My understanding of leds is nill i need someone to dumb it down for me.