Sorry about not responding to your PM, life hit me pretty hard a few years ago and I took some time off from forums. While I no longer work for Brightwell, I'll be happy to answer questions you have, if you still have any, about OrganitR. I'm in the middle of setting up a new system and am using what I have left over to deal with DOC. I'm personally running it in a CPR Nano Tumbler in the sump. Fluidizing it IS the best way to use it, just like any resin, but it will do well in a bag too.
One thing I will say is the NaCl thing is a way to get around recommending bleach to regen. The concentration of NaCl recommended puts a lot of chloride in the water and it's in effect bleaching/oxidizing bound organics on the resin.
Personally, I've switched to AquaVitro Purfiltrum in the nano reef and will be using it in the plant system once I've used up the Organit.