Carbon Poker Cash Games not as Juicy anymore

Ever since April 15 when Full Tilt & Pokerstars shut out USA players due to the FBI (see post from April), Carbon Poker Cash Games have gone downhill. It used to be easy to find a table with an average pot size of around 20$ for .5/1 NL, now they are all around 12-14$. I assume this is due to the cash game players migrating over from FT and PS.