JCB,
Just take the pesky crankcase breather hose and route it so it drips onto your chain, ziptie it somewhere and fuggetaboutit. Deep six the little toy filter thingy. I set mine so it just drips onto the road and destroys my little part of the environment everytime I ride. (no more chain so lube not needed, man is my wheel clean too!) It almost never drips though once I put the Krankvent on.
