1) You sure about that? I don't know him and that is a common misconception.
2) Wasn't trying to impress, just trying to clear up a misconception.
That is the exact gun I'm planning on purchasing as soon as I can find a dealer that has one in stock. I've heard it with a Ti-Rant supressor and its sound suppression depends on quite a few variables, ammo (sub sonic for best results), dry or wet (people use water, but like you mentioned, doesn't last long) and also outside tempature (the cooler weather, the louder the sound). Still even with all the suppression, a 45 is going to make a sound. The 9mm version is dang quiet, but again, it's not what Hollywood makes it out to be (No, chirp chirp). That's my point.
And FYI, that 22 link is loud in comparison to a well suppressed 45 or 9.
Here is a good example of what you can expect from a well suppressed 9mm. You can do a little more to get it even quieter, but it's no chirp chirp.