Many thanks for the fantastic advice and suggestions from all of you!
It's good to hear what I was hoping to hear...that the R-09 is definitely quiter than the NJB3. Buying with confidence is important IMO. Knowing I'll at least get some improvement just from the R-09 upgrade makes me feel a bit easier about the upgrade.
The current setup will change from:
AT933's -> Batt Box -> NJB3 (line in) to
AT933's -> Batt Box -> R-09 (line or mic in) - thanks to Richard I'll read up on the R-09 issues, to
AT933's -> Preamp 9100 -> R-09
I definitely think I may purchase an AD-20 or something pro level after this summer. For now, I like the idea of going even lighter with the 9100. Heck, last time I checked, I wasn't a kangaroo ;-).
Chris - I definitely appreciate the placement of your professional opinion before a business sale. Nice to know you are still one of us & not just "another retailer." I've always enjoyed and taken good information from your posts - they answer the question asked and not necessarily the rig that another post would go to (a completely common practice around here IMO). I'll definitely be sending you some future business.
Row, Brennen and Matt - thanks for your high recommendation of the R-09 for my situation. I'll definitely walk through the doors being confident.
I'll be back in several weeks with an update and let you all know how it goes!
All the best!
Dave