I have a custom HKS supercharger setup. I don't think the power delivery is similar, but if you want, I can still give you a ride to see how you like it. That is, when the weather gets better around here.
I need to fix the tune, but I'm currently sitting somewhere around 365whp/345tq at like 4psi LOL. I'm running less boost than almost every other supercharged setup out there, but I have more torque than a lot of them.
Hope this helps? It's not quite comparing apples to apples, but if you have any questions, feel free to ask away!