The UC works well for Pro's and newbies alike, it is a high performance car, and it may take a lil time to master the road but once you do it is very easy to maintain and thrive.
I think the system you were refering to with the overflow was Jack's and he had to do that for two reasons:
1. His overall length was very long.
2. His plants are f**king huge and have massive roots filling the modules.
Regular root sweeps and the handy filter now included with the UC help prevent back ups. To me it is the gift and the curse, my plants blow up therefore I have to root prune every once in a while. Not a bad trade off!
I've been lurking on this site for a few years now and have been wondering if you were going to show us your stuff. Beautiful set-up. Do you think you'll be able to achieve similar results with a significant reduction in your plant count?