Adding a new 1000w Mh to veg room

[FlaCaEnt]

Currently running 4 4'x2' T5 in our veg room and are planning on installing a Hortilux 1000w vertical MH. The entire room are is about 12'x9' and only half is being utilized at the moment. Any suggestions on an effective way to use the t5 as supp lighting to the MH. Our two options are to place mh in corner and setup plant into sort of a pyramid into corner with t5 on the outer edges OR put the mh in the middle of the room and t5 along walls and have plants centered around vert bulb