Modding the Sakura Fubuki, Potential cheese inside Options

[Dancer]

The Yamaha Sakura Fubuki is a pretty good gun, more damage than a Predator in a light-pistol sized package. But it doesn't seem to be living up to its potential - the Metal Storm technology it uses could blow the entire 40-round stack in less than a second. Admittedly this would break the user's arm, but a 6-round burst would still be very manageable and could really ruin someone's day. Since it has no moving parts modifying it for full-auto fire would be a simple matter of changing the firmware to make it trigger off more rounds, needing a chipburner at most.

My feeling is that a long burst would have pretty savage recoil (given the weapon's light weight) but because of the insane ROF you wouldn't feel much of it until you've finished shooting. I'd only apply a -2 recoil modifier to the burst, but say it takes a Complex Action because your weapon ends up pointing at the sky.

What do people think? Wrong? Unbalanced? Likely to get me throttled by my GM? How would you do it?