I did a 3 camera shoot with 2 EX3s and my FS7 as wide. They matched really, really well. What I did was turn everything off on the EX cameras picture profile wise. TLCS off STD too whatever that does. Then set the FS7 to STD5 and everything else to my recollection was as plain vanilla as possible. Of course set all cameras to the same resolution, frame rate, etc…I did white balance them all but ended up just using preset WB and it was absolutely acceptable. The exercise made me want to pick up a used EX1/3 as a b camera!