I also don't think there's much restriction, your setup should be fine. But I'm not a fan of vent to atmosphere PCV systems (but everyone does it), I'd rather see the PCV hooked up to the exhaust or intake to provide suction on the crankcase, but these are difficult to plumb imo.
Regardless, I also have my crankcase PCV changed to a striaght through fitting with a 3/8" hose going to a Evo PCV on a canister; the end goes back to an intake manifold vacuum source. My VC PCV goes to a canister then routed back to the intake before the turbo.
my semi-rigged setup