Ok, here is the reason for the side wall placement; the wall with the TV and future center channel is only 8 feet wide. It is centered between the two side walls that are 30 feet apart. To the left is a stair case leading up to a loft and second floor, it's open to my dining room directly next to the 8' wall. To the right it's open to my kitchen. Basically an 8'wall with a fireplace on the bottom and stone facade all the way up to about 17'. I agree with everyone that placing the M22's on the side wall will not be an ideal placement for them.
The other option is to mount them on either side of my 55" LCD and place the center speaker above the TV. I have about 16" available on either side of my 55"" LCD. Will this placement be too close together? They'll be about 8' apart max. My sitting area (couch) is 13' away from the L/C/R and TV. I will be using 2 or 4 QS8's for the surround, too.
Think this will work? Thanks