Do Small DUCs suck?

[Nitram Draw]

Maybe the ability won't stack if it is attached to a component.
I did a little test of it Last night and got more variety in the "to hit" numbers, both for the fighters to hit and a ship to hit fighters. I did not see an increase in the "to hit" if the fighter Groups were different sizes. I didn't do a thorough test but maybe I can this weekend, or someone else can sooner.
I think it will work as a short term solution.