2007 ms3 bov/bpv
 

I've done a little bit of research, and from what I've seen, because our cars have MAF, we're essentially required to run either a recirculating BPV, a Hybrid or 50/50 valve. If a BOV is ran, it causes stalling/backfire issues after closing the throttle, that's not an option for me.

I'm currently running with JUST a Mazdaspeed CAI, everything else as far as my power-tran is stock. The stock BPV is extremely loud under almost any circumstance, and is a nice, clean sound. (This is a reference, I love the way it sounds now.)
The problem with, and reason I want to swap out the stock recirc unit, is due to boost leak/creep. Also, say what you will, added sound. For the record, the 'ninja's under my hood' sound (Whichever valve it may be, no offense to those who run it), sounds absolutely terrible to me. It doesn't sound anything like a BOV, and rather a metal-on-metal banging.

My question is weather or not you, personally, think running a 100% recirc or a Hybrid 50/50 valve is best, AND WHY.

Which valve do YOU recommend, AND WHY?

I'm looking for a safe unit that doesn't leak or creep like the stock valve, that will give me a nice, clean, Yes-It's-Turbo'd sound. No Ninja's.
I know there's plenty of valves out there that wont leak or creep, and that recirc to avoid problems... At which point sound would be the deciding factor. I love BOV flutter (NOT TURBO-DAMAGING COMPRESSOR SURGE), so if there's a valve that will recirc AND flutter, with little to no drawbacks, I'll gladly fork out the dough for it.

Thank's, guys!
-Cameron