marshallartist
Marksman
I've owned the 21, 30 and 30 SF. I found that I couldn't shoot the 21 as well as the 17 or 22 so I traded it for a 22. Maybe if I put in a little more trigger time I could have mastered it but I developed a bad case of GAS (Gun Acquisition Syndrome). The 30 was very nice. A little thicker than a 19 but otherwise about the same size. Unfortunately I had one of the "problematic" 30SF's that wouldn't fully go into battery. After two trips back to Georgia it seemed to be alright but I never fully trusted it so in another bout of GAS I traded it for a G19.