I find it funny that people are calling dual recto's "fuzzier" than marshalls here... my experience with every mesa and every marshall I've played is that the mesas tend to have smoother, more compressed highs than the marshalls- i mean, there's a LOT of high end available on a rectifier if you need it, but the distortion to my ears is smoother, while the marshall sound is definately "crunchier." I've gotten some awesome lead sounds out of my TSL, but generally, they were with either VERY little distortion (this thing records beautifully with the gain on like 3 in the lead mode, very hendrixy), or a good amount of gain, but had that "pleasing in a good way" zakk wylde-esq dark buzziness to the sound, something i would actually be happier without.
Sure, if you scoop out the mids, push the bass, and boost the treble and presence in the modern mode of a dual rectifier, it's gonna hurt. And these are the traditional settings you see them in in Guitar Center's, because that's what all the punk 15-year-old kids immediate;y set them to (no disrespect to TwoHands, who is now probably pushing 18 but even as a "punk 15-year old" still was pretty enlightened about gear... for a line6 fan
anyway, point being to our younger members- exceptions do exist) But, since when did you trust your average 15-year old brat with his daddy's credit card to know how to dial up a good tone? Spend some time tweaking, there's great sounds in there. Definately not thin and buzzy at all, if you adjust that treble and presence knob with a little bit of moderation.