Gee I dont know that flocking does not help in really dark sky. I "invented" a long dew tube with 8 baffles (2.5 feet) in an effort to reduce stray star light entering the tube for my 150ar and it made a noticable difference in my dark sky. The tube inside in not flocked yet (cant find the stuff locally) but I recon that will improve things more.
alex
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