how do you people tremolo pick while palm muting on the low E string

if you watch guys play, they both hit the string on a different angle, both have different techniques

i prefer the dude on the rights techinique, i find that alot easier to play, but i have heard hes quite a sloppy player

which one is correct? or any other comments
Umm there are no people - but just do what's most comfortable to you and what sounds best...
Quote by juan Andrés

Sorry awful Anglish.