Not trying to break your party Jon, do as you like. But if you ask me: leaky catch can < OEM < airtight catch can.
In fact if we're talking about a street car, not a race car, I wouldn't even bother tinkering with a catch can on the pre-throttle breather. That line only pulls blow-by/oily air at WOT, and street cars spend very little real time at WOT.
The post-throttle PCV line, that pulls from the crankcase ALL of the time, would benefit much more from a catch can (the can would catch much more oil there). But in the Z22SE it is just a metered orifice buried inside the inlet manifold, no option to insert a catch can (barring creative modifications).
I'd use copper scrubbers better than stainless steel ones inside a catch can, copper is a catalyst to hydrocarbon breakdown (specially if there is water vapour around, like in crankcase gasses).
