To pt.1- ok, now that we're on the same track :)
Possibly so, though I disagree, but in the case of narrow angles: they're mostly all that I suggested but with a shorter max-range for good damage, and hitting multiple targets (BTW, I assume we agree that their advantage is higher damage, which by diminishing at a similar rate as SGs do now means "focused" damage in the narrow funnel - so double-damage and half the funnel width).
Assuming this doesn't make them overpowered, then aside from this being exactly the situation I'm trying to balance (i.e. you'll still need a CG to complement them in too many cases), a double-shotgun out-classes these simply by doing the same damage and having a wider funnel (or: since it's for double ammo, maybe just pick the SG, which wasn't supposed to make much sense).
Furthermore, give DblSGs a narrow angle (if it's a trait) and then *they*'ll be too tough, at double-damage of a DblSG, which is like~ a point-blank SG hit, but at long range and multiple targets, still never missing = too much pain!
Let me know, of course, if you had something very different in mind.
To pt.2- Aye.
Still, it seems many people are unaware of the advantages of Intuition (as I've undersood from some comments). If beyond that they're also aware of advantages of traits that I or we don't use, then it may become simply a matter of personal strategy, and our/their not knowing how to manage their/our style of play. That's what I'd like to clear up, but haven't yet succeeded.