I'm listening again tonight, and the 3.9M sounds best to me. But here's the thing, I don't feel the 3.3M takes it wilder. The opposite. Like 3.9M is a peak, compared to 4.7 and 3.3. The 3.3 difference is subtle, might not be much less wild, but really not hearing more wildness there. Also, when I went back and listened to the 6k7 cathode resistor, with the stock 4M7 R37, I hear more 'beating' of the LFO. I guess it could be that I'm playing just bit differently. But that low end on the samples in post #225 bugged me. Lowering R37 seems to have smoothed that. I like the sound at this point. I don't have a clear picture as to what these last tweaks did, and that's OK, but I don't know if it's worth doing anything more. Clint, is there something more you wish you could tweak if it were on your bench? I'm happy to continue, if you like. On the other hand, if you're dead and tired of this, you have my eternal thanks. Well, you have that regardless.