I only use the Kobra on the A-91 and like one or two other weapons.
I've tried running the SKS with the default scope like the other rifles but it hasn't clicked with me so I went iron-sights and used it in CQC to pretty good effect. Probably why I like the DMR's in BF4 right now: Because they feel the same.
But yeah, I NEVER use anything on most of the guns and run them pretty bare with exceptions of like the foregrip and heavy barrel if I can help it. I always have to SMH when I switch to an enemy kit and get something like... thermals on an LMG (I seriously got this on a 64-Metro Conquest on PC, it was seriously "WTF").
I can't use the A-COG at all. It always throws me off because it's zooming "closer" than it really is or something. Hard to explain. Even using the 12x throws me off a little.
But anyway ya'll are missing the point: No scope sway and that GDLK GOL Sniper Magnum "iron-sight"/default sight. I want that back. Just a +, no chevrons or anything else.