It's just a question of how much cob light. Cobs are new to me, but going with enough I hope. I can always buy more if it's not enough.you've got the right idea take what you've learned & apply it from the ground up doing it the way you want it I like my cob & want another with the cobs I can run 2 rooms for the money I used to spend operating 1 room I've still got to get things dialed in but I'm close
I really like these 2, plus with Budmasters full spectrum that drops off a bit in the red, imagine having these next to them 'just in the flowering tent'
http://www.plantphotonics.com/catalog/product_info.php?products_id=56&osCsid=ij4nf8lld0a53fc1ctvi4d6o90
I've seen some excellent cob grows, I'm sold.