https://soundcloud.com/recursion-loop/v ... w-test-dry
The patch settings are almost the same but they do sound a bit different. Though I wouldn't call this a day and night difference.
And this is the same thing with external delay and reverb (the same send effects for both) Just because most trance-related Virus demos are drenched in reverb
https://soundcloud.com/recursion-loop/v ... w-test-wet
Actually the reverb and delay and Viper don't really sound like reverb and delay in Virus and that's imo the biggest difference between them.
EDIT: I've just reuploaded the files. The Viper patch had one parameter set wrong. They sound much closer now, sorry
