You could use a CV delay in the same sort of fashion of splitting so one is 'raw' and one is 'delayed' (or chain more if you wanted thru Spider CV), then connect CV raw on Subtractor 1 Filter 1 on a Saw, and then with a delayed CV connect to Subtractor 2 Filter 1 on a square so you get a modulated Saw first then Square second. Sort of like sequencing on the Matrix / Thor, but you get duplicates (kind of like how Rob Papen's "BLADE" works I'm guessing). Also mixing an original CV source with a delayed one at a different level could produce some very unique CV modulations, plus they could be replayed and repeated consistently if triggered by MIDI. Like having one fader go up on CV 1 and on it's way down delayed CV 2 on another fader matches the curve to create a fluid sound. Or generally to mess up all sorts :D
Also might be like multitapping echos, but in CV form. Wonder what would happen if you did do an Audio in to CV out via 2x Thors, have Audio in on Thor delayed when it comes in, and then twist the delay down to 'zipper' the audio in. However... CV at fast rates (say about 50-80 or 100hz) get to the point where you cant hear the modulation but you hear it similar to FM / AM tones instead.... Has to be super slow, and also needs to be BPM dependent if you want specific not lengths. That's another trick thing in itself... think this is where multiple Pulsars may come in effect (by Combining them, single note key mapping and Midi triggering each in turn.. hmm idea pot stirrage :D) - however, I've also found that if you legato notes on devices that should only receive 1 note *may* receive a trigger from said extra notes... so becomes less desirable effect. Have tried this with single samples too sliced to perfect 8th note speed so I can pitch bend up 2 octaves to get 32nd notes and down 2 to get 1/2 notes from same samples. Tricky but fun experimenting. This is what led me on to playing with same idea, trying to emulate Massive's performance LFO in a similar way, and Audio has to be a set level (think it was equivalent to 250% Audio 1 in on Thor to CV1 to get close, so 100% + 100% + 50%, three lines in Modmatrix). will ponder more thought on this mate...