What I did there with the oscillators was to do a pairing very much like what I did on a rebuild last week. In this case, the "primary" oscillators are the Telharmonic and the Plaits, and the STOs are co-located so that they can be used as an AF modulation source or a doubling VCO on each. But yeah, the lack of envelopes was the key...VCAs and VCFs need 'em like we need water!