Devinefist is for sure NOT doing it the legit way, nor are a few members on here... you know who you are!
If you're doing MGP legit you're going to miss some here and there. He never misses them, except sometimes he'll miss the initial charge (giveaway there). You're also going to time them a bit better, not just throw MGP all match. He MGPs so much that it works to his disadvantage sometimes. Why didn't he just hold the charge and block?! It's because his rapidfire controller is doing all the work.
BTW there's 3 methods of doing MGP. Legit method is using proper lk taps. Cheater method 1 is using a rapid fire controller. Does anyone know the third uncommon method of doing it? *hint this method also works on the t-unit.