As far as I know, the design you have is the one they decided to go with. Kelvin is the only person I know of who got the BOV with the flange on the side.
I've only stalled once with the Forge BOV. The only issues I have are when I'm sitting at idle & rev above 2k & then go back to neutral. The throttle will then dip down, but it comes right back up. I've never had any problems with revving high or while moving more than 5mph. Basically, you just learn to drive around it & then it rarely happens. All signs of the turkey are completely gone on my car as well. As for the auto-x thing, I noticed a definite increase in throttle response, so maybe that's the reason for the class change.
I can answer any other ?s you have regarding the Forge BOV. BTW, I can change back to stock in 5 min or less (done it like 10x).