Originally Posted by peacob
quietest and most air efficient doesnt really go hand in hand.
The DM will be the quietest and smoothest shot by far of the markers you've mentioned.
As for efficiency, the G6R is one of the most efficient markers out there. (along with Vic's and Vikings)
G6R would have less kick and lower sound signature than your Ego11 as well as being more efficient.
If you went the DM route, you can do the tophat mod and gain some efficiency
I was just trying to find a happy mid ground of the 2.