DD with ur sniper allows ur hunter to hit faster, so the bird gets alot more chances to hit. From my own experience of a hunter with 170 luk ( xD ) things can barely move when the bird keeps striking them.
Stalkers don't have a bird, however, i think if you add a sidewinder, itll allow usage of double attack. With the additional strikes, I think you would be able to hold it down.
Hope I helped

(had to fix my post like twice , ha )