The Mash-oldano I bought off Matt Fig rips thrash metal pretty well. Plenty of gain. In fact, I don't even use the gain-iest setting.
Nice tight distortion and a real sharp percussiveness on the pick attack.
It also does plenty of more vintage crunch tones too. All around great Marshall...
I love my Bogner 4x12 with v30 and g12t's in crisscross. Best cab I've ever had, and that's been quite a few.
Also just bought 2 loose Eminence legends and put them in an old 2x12 and it sounds great too.
Maybe I just like everything though because I thought my Mesa oversized rec 4x12...