I've been considering buying a Rat 2 as I've heard they can do a good overdrive sound also. I'm looking at the new ones that go for $70. My questions: 1. I've read a lot about the LM 308 chip. How much better is that? Or is it myth to some degree. 2. When the drive is all the way down is there still a certain amount of gain that can't be dialed out to zero? If so, is it more distorted than an amp on the edge of breakup? I'll admit I'm pretty unadventurous in chasing down vintage models and while I don't consider myself a material person and play some knock off equipment but when I want a Fender I want it to say Fender. So when I want a Rat I probably won't be satisfied if it doesn't say Rat. Weird, I know. Just curious about the new models.