RANT:
No.... the thing I like about pulling up next to a high dollar car is kicking their ass and it not sounding at all like I'm trying. It gives people chills, says I just won your girlfriend and I've still got more. I've had it done to me by a couple VERY cool (all under the hood) cars and I've done it to some as well. Besides, a large amount of people think nothing good about those who are doing it just for sound (and yes, many of us do know when you come driving up if it's doing you any good or just some stupid ricer punk mod to look more like Mr. Diesel or that blonde guy... or someone from Initial D if that's your thing....
). But, to each his own; I'll still help where I care to.
/RANT
Running dual will still leave you running rich at the shifts (and thus still cost you power and throttle response). A dual setup probably isn't your thing anyway as it cuts the volume of the whistle in half. Getting the electronics to live happily with whatever arrangement you're running is the key here and you may also find that there's more power to be had from a good tune; The stock fuel maps are quite conservative and rich.
You really have three choices:
1) IF you're more concerned about actual power and efficiency, tune it.
2) IF you're worried about drive-ability and cost along with power, get the recirculation kit or a BPV and get over your love for Big Bird.
3) IF you really don't give a crap about any of the above other than somewhat decent dive-ability then run a dual setup and be done. It will still bog, possibly stumble, but shouldn't stall.... take your current problem and cut it in half.
I suppose you could install a "bad boy" switch. Install both BOV and BPV Connect a VSV to a PWM and place the VSV on the signal line to the BOV. When you want to act tough flip the switch to turn on the BOV; When you're ready to drive aggressively turn it off and you turn the BOV off, leaving the BPV running solo. (You could also turn off the BOV when a cop gets behind you this way.)
There are other ways to deal with this but the cost just keeps getting higher. The issue lies with both the ECU and AFM (this problem affects both VAFM and KVAFM setups).