I dunno, I've always thought the guitar tone on Elements of Persuasion was a little off. It's not horrible, it sort of has a unique style that's appropriate for the type of music, but I wouldn't want JP to use a tone like that. It's sort of got that high/mid contour, twangy chunky metal tone, but still comes off a bit thin. (It gets ridiculous trying to describe tonal qualities but hopefully that slightly made sense).
Even though it's probably less unique and more generic, I much prefer the tone Marco Sfogli uses on Static Impulse/Impermanent Resonance. YET, I still prefer many of the compositions on EoP. Can't win haha.