indeed,Propellerhead could (at least) try to insert vst support without messing with the stability...
maybe on Reason 15.5
i'm using them to route the modulation waveforms (Mod A and B,also the filter envelope) to the inputs of other parameters like the pitch,index,level...the spiders are there because i wanted to split the single signal from a Mod output into multiple signals...kind of a tree later i used the outputs left from the spiders to twist a subtractor some machines below,combining both modulation waveforms...
that's a lead sound,i'll post a sample later