Very interesting fella's.....Did use know that one of the reason Diesel cars are so popular in Europe is because they don't use a Throttle Body (AFR is increased at the Injector pump/Throttle cable) they have considerably less idle loads or piston pumping on downward strokes as the crankcase is not restricted by a PCV or a restriction in the intake.
They do still recirculate gases/fumes into the manifold for emissions, but theres no need for a PCV, as its an open system. In city driving (excessive idling) they're up to 30% more econmical. Now i've been thinking about removing the internals in my PCV as i'm on LPG so it's pretty emissions clean already and it'll be a good little mod!
Have'nt yet tried it, might go out and do it now tho!!!

let me know how you go with stripping the guts outof the pcv, ive been thinking about it for some time now