I also have an AVT50 and these are my settings for playing (All with volume at 2-3 since the tone gets messed up as it's louder);

Metallica ("Master of Puppets" sound)
G:10
B:3
M:5 or 6
T:10

Iron Maiden ("Killers" sound)
G:8
B:3.5
M:10
T:10

Scooped (REMEMBER! VOLUME IS LOW!)
G:10
B:10
M:0
T:10