Here's the thing.
The Mark V is, kind of like a lot of Mesa's, Hard to dial in.
In fact, with so many modes, settings, EQ, etc, it is very easy to make it sound kind of strange.
However, there IS something good in there, if you get it dialed in right, and can CRANK it to the point where it starts to sound good.
I think when cranked, it is a pretty awesome amp, like most amps. However, if you can't crank the amp, it can sound funky.
and if EQ'd wrong, it can sound bad.
and this can go on and on.
Is it a BAD amp? No way. The Best? I guess that depends on your needs.
It's like people forget, the Mark V ch.3 is basically some Mark IV modes. not a new sounding amp.
I share the same love/hate relationship with the amp, but when I get the opportunity to really crank it, it is pretty awesome. it's just the lower wattage settings that leave me a little flat.
As for Petrucci,
who cares?
I've tried his settings he's talk about in other video's and honestly, it just didn't work for me. Didn't like they way the amps sounded, but was a different way to dial that I had done before.
We've seen him using it live. If he used it on the recording, so be it.
What I'm really waiting for, is all these artists to talk about when they stop using these amps, and start using only the Axe-FX units for everything, not just effects!