And along the same lines, can one slap a Gridfusor next to a polycylindrical? In my case, the poly would be in front of a bass trap straddling a corner, at a 45 degree angle to the side of the gridfusor, mounted on the front wall.
BTW, GIK should bring back their polys. They were gorgeous looking! Maybe not as effective as the QRDs, but I would say higher on the WAF scale.