btw, here's the Tip Top Audio VCO waveform test:
http://www.muffwiggler.com/forum/viewtopic.php t=2158

Is it just me or does Analogue Systems VCO produce better traingles and sines

Thanks James,

Laryn91, I just recorded my synth using the filter as a waveshaper.
Good tracking is not needed, you just have to patch a 1v/oct signal
into the filter's VC, but that VC needs an attenuator. You don't want
to give it full VC. Here's the recording:
http://www.elanhickler.com/misc/filter-waveshaping-test.wav

1. Raw sound without filtering.
2. With filtering (notice how you can't hear low notes, that's how it
should be with sine waves, however the problem is that low notes also
have small peaks)
3. With filtering used as a modulator (the lesser peaks means it's not
good as a modulator, not enough volume anymore)
4. Without filtering used as a pitch modulator (this is how the
modulation should sound)

Hmm... Its anyone's guess if a filter is really worth using as a waveshaper.