Rex Rocker
Call me Hugo!
I don't know if this is exactly what you mean by 'dynamic', but, personally, 'dynamic playing' is not really what I'd look for in chuggah chuggah parts. I think a player that's better at picking consistently hard and precise is a player that's gonna sound better in those kinda mixes you're attempting, rather someone that's playing some parts hard, some parts soft, some parts medium.
JMO.
JMO.