As I have owned both, the Ogre is for heavy oil. It can be used on a Heavy THS shot. The AMB is for EXTREME oil. It is in my tournament bag only! I kid you not on the AMB, even on EXTREME oil, I cannot use it for a full game. I sold the Ogre, because I have Lanemasters equipment that is better for a heavy THS shot. Also, keep in mind the Ogre gets a fuzzy feeling while using it. It's kind of like a days growth of beard, on the ball. Even after cleaning i'm not positive it's clean, it's really, really weird.
THIS IS MY OPINION ONLY!!!