I am not sure what VST my studio uses as a preference as most of the time we use a real bass. It is simpler and easier....we know a lot of great bassists. Mike is right it is better to get the inflections from a real player than messing around with samples. These guys are always around the studio and can do things in a couple of takes at most. Worth looking into for a pro demo but there are a lot of very good bass programs for rough or home demos.