I've had a few of the older Mustangs; the one that saw the most use was a Stainless Pocketlite. After about 600 rounds it began to peen where the breech of the barrel slammed down on the alloy frame when unlocking. My main problem with them is a fat trigger finger (I ran it betewen the belt and sprocket of a swamp cooler); the Mustang has a groove in the bottom of the trigger guard, and when the trigger returns it pinches my finger. I don't know whether the new ones are like that. I think the SIG P 238 (?), has slightly different shapes down there so that doesn't hapen. All of my Mustangs have been dead reliable with anything including my cast bullet handloads, and accurate enough for head shots at 25 yds. I'm an old 45 shooter so I like the placement of the controls just like on the 45.