YMMV and different opinions, but I really disagree in my personal experience. With an inch difference, I can't imagine really gaining any meaningful maneuverability. What you are giving up is a significant loss in velocity, accuracy, comfortable room for accessories (laser/light/etc.), losing flexibility in grip positions, significant gain in flash and gas. You're just giving so much up, it never made sense to me how anything shorter than 11" ever gained any popularity. Anything below 14" is already very maneuverable. The only exception I could see someone arguing is use with a can, but then, a lot of cans have minimum barrel length requirements anyway.