PS3 Brawl Stick dual modding it for XBox 360

I have a PS3 Brawl sick… never thought id need to dual mod it but at a local tournament they only use 360s… so I need to dual mod it.

Whats the best PCB to use on it ?

Mad Catz SFIV or SSFIV or SFxT FightPad or WWE BrawlPad with Imp v2.
Or Mad Catz #4716 from GameStop with Imp v2.

So does that mean I must buy another madcatz XBox 360 product and take its PCB and use the IMP v2 with my PS3 stick ?