We've had someone try to use a hyper rev2 before, the problem being in the minigun design the +5V line isn't soldered to the parts AND solder side of the connector, it would require a simple, single wire mod to do so however. The SEGA ST-V apparently requires the same.
We haven't got a hyper ourselves to test, but since finding out via buyer feedback we have started building miniguns with the adjustment in already.