Okay, I understand what you are saying about how action effects performance on playing. I have a pretty good flamenco guitar and I am a decenty fast. Though I want to learn on electric first because from what you said, shreading on an acoustic is very hard. So do you recomend any popular songs I can practice on?

But I can add one more shreader to your list. Check out a guy named Juan Serrano. This guy is mindblowing . . . well at least in my opinion.