Answers
1. One does not simply remove the Knox Bootloader.
2. A custom recovery only contains a "recovery.img" which is why its OK to use Odin to get a recovery on the phone. Do not use Odin for anything else though as there is a chance you can brick the phone. You can flash any custom ROM over the custom recovery as long as it doesn't have a custom bootloader most don't so don't worry about it. I suggest *Philz Recovery BTW. USE ODIN FOR RECOVERY AND RECOVERY ONLY.
3. Yes! I unfortunately I took the OTA as well and was able to root and I'm currently running **CM11! Like I said in #1 though you will still have the Knox Bootloader.
4. When you flash the unknoxed version (I suggest deodexed if your into customizing the ***stock ROM a lot) you WILL trip the Knox Bootloader not to fret though because you will have already tripped it by using Odin to get your custom recovery at this point and you will still have the Knox Bootloader. The ROM will not have the Knox apps installed.
Hope this helps! I updated via OTA as well so if you have any questions I can help you along the way seeing that we both GOT KNOXED UP!
* Link to Philz Recovery Thread by jdsingle76
** Link to CM11 Thread by struckn
*** Link to Stock 4.3 w/out Knox which also has the MK5 modem and WiFi fix by jdsingle76 and
TheBritton
AJ, very, very nicely done! I don't feel any need to clarify or add to this, you knocked this out of the park my friend!! Very happy to see that we have a new consultant on hand, thanks as well for your responses to the "Am I screwed" thread.

. USE ODIN FOR RECOVERY AND RECOVERY ONLY.
