I think static sounds like a single hit (snare/tom/kick), even at multiple velocities work, but I haven't heard anything realistic when it comes to brushes.. they are too legato.
Instead of buying a drum, and working on making it happen.. hire me to play brushes on the tune. I can send you something to hear if you are interested. I have top quality gear..
No worries if not..
jeffdrummerhall@gmail.com