I have upgraded from the Walker system to the Racor CCV 4500 and the Racor air filter unit. In 300 hours the filter in the CCV was not fully saturated and there was not a drop of puke in the water bottle I placed in the bilge at the end of the canister drain hose. Engine room is clean as a whistle. Best upgrade I ever did, although pricy. Changing CCV filters is two clips and washing the air filters is 3 clips to remove. The cleaner the blowby is going into your engine the less frequently you need to service the aftercoolers so the investment is worth the cost.
http://www.parker.com/literature/Rac...cts_-_7790.pdf