Ok, I admit that I'm "That Guy".

I've always thought if I put enough thought and research into a problem that I could find a better solution that the standard issue way most everyone else is doing it. So in that same spirit, I am looking for a better way to keep the oily residue out of my turbo. I have heard about the oil seperator or catch can, and I've also seen a product that is a CCV open breather

. What is the down side to doing this open breather configuration? The web site says this is the way the 5.9 was vented.