Thanks for dropping in. Nice to hear from you again.
I shoot exclusively in RAW mode and have no need for JPEG files. It makes things easier for me in file management and post processing if I don't have to keep separate original RAW and JPEG files. My three folders in post processing under the session folder are "Originals" where the RAW files live, "Processed" for finished images, and "WEB" for the occasional Nikonian and other JPEG files, as needed.
By sending the RAW files to the notebook computer I am also capturing another backup set.
If I were doing a lot of studio photography with the D3X and D800E with their larger RAW files, I would likely consider using JPEG. I haven't tried shooting tethered with the D800E yet, but am guessing, based on transfer time for the D3, that a RAW file transfer via USB cable will be about twenty seconds or less.
From another perspective, plugging in a simple USB cable to the camera is a lot cleaner and tidier than attaching the WT-4 unit. The law enforcement shoots can get a bit "dynamic" at times, and anything that is not "bolted down", so to speak, can be at risk. As mentioned earlier, it took about a year to work through configuration details over several sessions to arrive at the rig shown above.
HBB in Phoenix, Arizona Nikonian Team Member
Photography is a journey with no conceivable destination.