interestingly,, imho, v twin can do metal, but not the tight like no gap chuggah chuggah metal. For those tight tight one, a boss ge7 into metalzone will do, no need v twin..
at moderate gain and a pump up amp, it can get some sludgy/stoner vibe, theres this spongy characteristic which i like, plus the thick mids kinda sound.
the overdrive setting, imho is ok, nothing fancy or bad. It works, thats all.