Armani
tryna bust a nut
since it's a hi-hat "roll", why not add a thingy like this to the corner, where each 8th part is assigned 1 hi-hat sounds (they could all use the same "sound" but different velocities/pitches, either automated or manually fixed, or different sounds even), and when you take the thingy's head and spin it, when it passes over to the next "house", it plays the sound assigned to that.
so that way if you wanna do something like "hat, hat, hat, roll, hat hat hat hat" you just move it quantizedly at first and then you go crazy, so it does the roll sound.