Hi, for the Interesting Drug etched 12" (not the promo, just the regular release), I know that some play both songs but some only play Interesting Drug on the a-side, even though the label lists both songs. Does anyone know if one is more common than the other? I believe the two-song version is more common but I'm not 100% sure. If so, do we have any idea how few one-song versions are out there? I've just been curious. Thanks everyone.