Here are a couple pics of my MMP with the case removed, and heat sink cut down, this makes the ESC much smaller and lighter, the same as an LRP SPX with in a gram or so if I remember right from weighing both before it went in the car.
Mine has been working good so far, I have run it 2 race days in Stock, 17.5 1s lipo, worked good but I did not have the settings dailed in and no laptop with at the track to tune it, there was an RS powered car or two that were faster, but not by much.
I have also run this in mod class twice, with a 5.5 motor on 1s lipo, works well and is smooth, the speedo gets pretty warm, 120 degrees measuring thru the shrink wrap, I have to play with some more settings for either class as I have been having radio problems, transmitter related, and haven't had much time to play with the ESC....JEFF