Don't bother with the V-Synth. Many of the great detuned trance sounds on the Virus chew up voices but have great 'width'. The synth engine of the V-Synth lacks stereo width. There's no way to pan one V-Synth osc left and the other to the right. OK, you don't always want to do that, but there's a narrow mono character in the overall sound.
Also the V-Synth effects quite limited and multi parts are damn near impossible to pull off. I'd call it a V-Disappointment
Cheers,
B