I have Red Robin and Kobra releases of Outcesticide and wanted to know if the were inferior to the Original releases by Blue Moon?

I'm not sure about Red Robin but the Kobra issues are copied directly from the original Blue Moon versions. And then they added those other three really horrible volumes. Outcesticide is actually fairly redundant, save for a few tracks. Loose Ends or The Chosen Rejects would be your best bet.

Added? Blue Moon didn't do 6 volumes? Why are they redundant?

Kobra issued three more volumes (6, 7, 8) with horrifically bad artwork and bad quality songs, Blue Moon finished at Volume 5. And they're redundant because better tapes have surfaced since then.

Don't listen to them, Blue Moon's Outcesticide's are still fun to listen to even if the quality is inferior to some...

I like the cover art on the darkside releases. I bought 1 just for that reason lol.