Re: Good (simple) auto-wah
Both the Boss TW-1 and the Q-Tron are gain dependent envelope filters, not auto wahs. The TW stands for Touch Wah. They are modelled after the original Mutron III. It's actually a much funkier effect than an auto wah, which is basically a preset sweep at a designated rate, whereas a touch sensitive envelope filter operates on picking sensitivity, opening the filter at a particular point of pick attack. I've got a very early TW-1 and an original 70's Mutron III, which is an incredibly funky beast. It's what Stevie Wonder used on his Clavinet. If it's particularly an auto wah effect you're after, there was the Boss AW series, but they're a bit lame compared to the touch wah effect.
Cheers.....................wahwah