I am not sure if CSS beta is disabling custom content but when I downloaded
M4 skin and placed it in the cs-beta folder, I still have the default M4. I'm not sure if its that particular skin or if the beta has special rules regarding custom content. I tried turning off consistency to see if that changes anything because I had one model before that violated consistency.
I know TF2, on the new source engine, had an option to disable custom content is there a similar one for CSS now?