help from my experienced hortos!

hey guys on my first indo grow wondering if what ive heard is true, im running a 600w overhead coolhood and a 400w running horizontaly threw the middle of the girls.

The big question is can i get good yields with my 600/400 combo? or do i have to have 1000w to flower all strains effectively? check photos at www.photobucket.com/checkumout

May points of light is better and your gonna want to get the 400 off the sides and over top. It's not that it doesn't help the side, it's just far more efficient overhead.