in a 5.1 setup monopole side surrounds are positioned to the sides and slightly behind your ears on the side walls. This provides great imaging for rear left corner, rear center, and rear right corner. However when moving up to a ES/EX setup with 2 rear speakers in back of the room they recommend you move your side surrounds up even with your ears on the side walls. This is to improve side imaging. In this config it provides strong rear center imaging when information is dead on back center do to the matrix extraction/channel in the rear of the room, but how would one still be able to get rear left corner imaging and rear right corner imaging with the side surrounds even with the ears? Take the patriot for example. with a 5.1 setup and side surrounds slightly behind and to the left there are explosions all across the back of the room in different locations. In back left corner, back center, back right corner. With moving to THX-EX and moving tge side surrounds up and only 1 center channel in the back it seems as though my rear soundstage will be shrinking. no more left corner imaging or right corner imaging in the patriot. Am I wrong in my assumption that rear steering will be effected?