180 Gallon Aquarium Powerhead placement?

Hey all. Looking for a little help. I have a standard 180 gallon aquarium and I just recently upgraded power heads.

I purchased two Vortech MP40s and have them placed at the opposite ends of the aquarium at about 80% on with master and slave one reef rest anti-sync.

I purchased these pumps to help with the water movement due to cyno in spots of the aquarium.

So I would like suggestions on placement. I have 3 hydor korellas and two coral vue dual head power heads that are needing placement suggestions. Attached is a drawing of my aquarium and a front pic of the actual aquarium. Any suggestion would be awesome.

 

I would suggest replacing the remaining powerheads with 2 MP10W ES pumps, and placing those on the back of the tank in your two "low points" of your scape.