you are my hero!
It takes a lot to get me to reply on a forum and you sir have succeeded most fantastically!
Installed the 893 update and ran through the following tests:
1.  Plug in headphones, what do I hear?  NOTHING!  Brilliant!
2.  Start with Wi-Fi on.  Toggle off.  Bam, 4G!  Wi-Fi back on.  Seamless.  Back off again.  4G!
3.  Airplane mode.  Off and On...no more hunting.  4G, blue bars!  And more bars that before.
Other observations...UI seems a tiny bit snappier.  If anything is more noticeable, I'd say it's my lock-screen.  Seems to track with my finger more readily, whereas before, I felt like unlock had a bit of a lag.
While I'm still within my 30 day window of return (Thanks Radioshack!), this is certainly a boost in the "keeping the Bionic" category.  
As for the camera, I took a pic earlier tonight with Camera Zoom FX and again the same pick with stock camera.  They look essentially the same.  If anything, I'd give a slight edge to Camera Zoom FX...but that could be my fault just as well (a bit more in to my 22oz brew than when I took the first pic).
Either way, thanks and thanks again!
Oooh, and in case it wasn't clear to anyone yet:
1.  Download file using your Bionic.
2.  Unless setup otherwise, move from Download folder on non-external SD to root of external SD.  (If you don't, update wont be found)
3.  Look for updates through Settings/Phone Info/System Update.
Cheers!