I thought the CSS was optional though. I remember it being an add on. But that was like 5 years ago so who knows.Oh yeah I would be careful doing that. You could easily suck in seals LOL and or cause a bit of damage. Yeah the dual valves rely heavily on the CSS to be connected. As does the stock setup.
The check valves and long lines seem to effect the amount of vacuum supplied to the pcv valve. As seen from the diagram above, the valve is suppose to be almost closed when there is high vacuum.