The Power Machine won't handle as much oil....it's a very powerful ball with a very angular turn to the pocket. It's great when the Meanie starts to burn up or gets too much movement. I can't recommend it highly enough. It's a great step down from the Mean Machine. And the Equation or Machine is a great fit below the Power Machine....I usually take six bowling balls to league nights...Mean Machine, Power Machine, Machine, Equation, Solution Power Plus Ex or Desert Heat, and my Flaming T spare ball...all in my Track bags. Think I like Track? I really could cut it down to four...just the Meanie, Power, and Equation...but I always want something for dry..just in case. As is...I'm a 194 average bowler and I've had in the past three nights a 591, 597, 598. Just having problems with ten pins...have left 20 of them total the past three league matches and only picked up 14. Working on that. Glad you like the Mean Machine. I'm not surprised. It's just a wonderful bowling ball and it lasts too...cover is really resiliant against scratches. Just keep it clean after every match and it will repay you fully.
Chuck