Dood are you trying to make a psytrance style daggadagga bass line???
the Virus is great for sustained, HP filtered, D&B type basses and alike. But it can't do daggadagga basslines at all :no: ... Infact most digital (software and hardware) synths are piss poor at it.
The Virus range are PHATT synths..... but not user friendly. Think the designers when they were like.... designing it :? thought.... "lets create an amazing synth..... and then put it together in such a way that it's a complete nightmare to use...."
The best psytrance bass sound/riff i've ever heard came from an analog Roland Juno 106. :p that's what i use.
but they got crap midi so you have to sample it. :blink:
Or you could try the old VB1 VSTi..... it you've got Cubase.....

Rinkadink uses this.
Ooooooor... You could also give Audiorealism's Bassline a go..... it's the best TB303 software colone ever....!!!! and can do a respectable daggadagga..... but use Multipressor with it to bring out the top and mid range
Have Fun
Beat-Root:jump:
P.S.
Who knows what Space Buddah use for their basslines? cuz me think they are the best. but can't quite get it on da Juno.