Heres an update on the caged fish...
I had a discussion with EW who suggested I release some of the 150 caged CNBG before spawning "fever" hits and drives them crazy with hormones.
All of the CNBG were "fat" as they fed continuously throughout the winter but I can't say I got really good growth since I caged them in December (at 3-4") but I guess I shouldn't have expected much. There were several closing to 5 inches so I think some did grow. However, I do feel that most of the HSB did grow (17 of the original 20 survived).
I also noted some "fungus" on the fins on about 1/3 of the CNBG and will post a few pictures of those hoping for some help with diagnosis and treatment (Note to God: Please don't let the treatment be drain the pond and start over!!!). I did not release the CNBG with the fungus. I saw no fungus on the HSB.
Here are pics of a few of the released fish:



A few pics of the fin fingus:



Thanks Ya'll!