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The CCV isn't designed to send oil back thru the intake. That's just a horrible way the process ends up effecting the motor.

How I understand it all: CCV is a feature needed to prevent the crankcase from getting over pressurized. I have read that there is more blowby at idle than when under load as it's the piston rings that cause the biggest part of this problem.

A catch can isn't a bad idea when applied correctly. A reroute system to vent to the exhaust may not have the "as designed" flow to pull the "blow by" out of the head area.
 
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