as with any SMG or full auto for that matter, how you shoot them determines how fast they empty. There are definite advantages to full auto when fired properly that semi auto cant do, no matter how fast you try to pull the trigger.
But hey, to each his own. Sometimes its just fun to dump a mag and show the non believers its easy to put all the rounds into the center of an IPSC target at 10-15 yards with one pull of the trigger.
“The enemy is anybody who's going to get you killed, no matter which side he is on.” ― Joseph Heller, Catch-22
Beware of associating with "Cheap" Squirrels. They tend to be very narrow minded, hypocritical, and will gag you if you question or disagree.