I see what you're saying. Going back to the post which started this thread, regardless of how far even light tackle may involve an element of bolt effect, and that's an unknown, those huge carp floats (16g) have, for me, far more in common with method feeder techniques than they do with the kind of light float gear I use.
For me, the key distinction is not whether some inertia in the rig alarms the fish, provoking or accentuating the visible bite; it's whether you need to be watching carefully and using skill and judgement to hook the fish. When the fish regularly hook themselves, whether you're alert or awake or not, it's a different ball game, and the growth of a whole market of devices for use on the commercial fisheries goes, I think, to prove my point.
For me, the key distinction is not whether some inertia in the rig alarms the fish, provoking or accentuating the visible bite; it's whether you need to be watching carefully and using skill and judgement to hook the fish. When the fish regularly hook themselves, whether you're alert or awake or not, it's a different ball game, and the growth of a whole market of devices for use on the commercial fisheries goes, I think, to prove my point.