Not what I expected, but pretty good. I dialled them into my amp and it's Hetfield for sure.
The master volume settings seem really off and I suspect those weren't set where he usually has them. The lower gain setting on channel 3 works great at high volumes.
It's amazing how hard it is to see those little switches in pictures...
I'm fairly certain that channel 2 is a lead tone. It reminds me a lot of playing through a Fuzz Face. It's thick and smooth without too much distortion, which suits James' lead style. Edge w/ the preset EQ in the position shown in the picture. Crunch also works, but it's a little more screaming and edgy... more Hammett than Hetfield.
Channel 3 is really cool. He's got it really crunchy yet also articulate. When I first looked at the pictures and saw the treble/presence settings I thought I was going to be drilling a hole through my eardrums but the results were surprisingly warm. When I play through these settings I get the distinct feeling that he was trying to make the Mark a little more Recto-ish in it's response. He seems to have slowed the amp down by pouring on all that bass yet kept things articulate by backing down the gain.
On Triode both the IIC+ and IV modes work really well. The IIC+ mode is a little dryer while IV is a little more lively. Both are crunchy.
On Pentode IIC+ seems way too dry while IV is giving me the right vibe for Metallica.
I'm using EL34s for what its worth.