Wow.. Have you guys even tried other plugins? I rarely like what the S1 does. First thing I'll do for width is slap a delay on the track and only delay one side, somewhere between 7ms all the way up to the 30s. Check in mono after you do that to make sure you don't lose it. My second favorite is Dr. MS. AMAZING plugin. You can place sounds in spaces that other plugins can't, and often it works well on the master bus too. Third I'd have to say is PS22, BC its subtle, but can open up the center a lot without spreading the sound too drastically.