JMW, it's not the shootability or the Manual of arms that gave me that opinion. I can run one just fine.
For what I do, a carbine in the 15 - 200 plus yd solution in my opinion. The advent of the "Active shooter " generation and the north Hollywood shootout showed how poor a fit the shotgun was for what I do. Don't want to pollute this thread, but we can definitely have this conversation off line or in person next time I see you.