What's the difference between the BG2 that just says Boomerang and the other that says Boomer 2? I noticed that most of the Boomer 2 wah's are advertised as Gibson Maestro. Did Gibson buy them out and rework the BG2 (relabeling it Boomer 2)? I can't afford a BG1, so the BG2 is the next best thing. How are the Joe Gahanna replacement pots for the Boomerangs? All the available ones have his pot replacement. I used to have a BG2 and the orig pot got scratchy quick and that cool 25k pot is outta production. I'm not sure if the Gaga n replacement was around when I had the wah, and I failed at cleaning the orig.pot; I broke it!