Lighting Question; 2000k HPS/ MH ?000k

I have a 1000w HPS thats 2000k, and I am going to run a MH 400w...what color, what dose yee recomend, oh experienced one, on the kelvin scale? 3600, 4000, 6500, 7500, 10,000k ? I found a bulb I like thats 7500k ... any pointers to round out a good spectrum for my Flower Room? I know the basics 2-3k flower, 4-5 general plant growth, 6-7 fast bushy veg growth... But for flowering with the 2k HPS, should I keep it lower like 4000k, or way high like 7500k to ballance out the HPS (2000k) ... thanks

rock ...paper ...scissors ... cat got your tounge? well I went and got a 6500 k MH, to supplment the flower rooms HPS ... thanks