just got it a couple of weeks ago..tweaked a tiny bit..here's me playin a lick just guitar to amp, then with a TS9 in there (which i personally think sucks)..i love the Mark IV's tone though
http://www.youtube.com/watch?v=UX-tmR1RoYE
http://www.youtube.com/watch?v=UX-tmR1RoYE