I'm trying to figure out why you say swinging wouldn't work?

I admit, I haven't really thought about this other than to post it here and my experience is limited in such things (I still haven't shot my 590 even with the normal foreend and rifle stock).

I thought 'tactical' movemen meant your whole upper torso swiveled along with the weapon?

Unless you mean for flying targets, in which case, I have no idea, having never shot skeet/trap/clays. Then again, I don't think I've ever seen double barrels with vertical foregrips