I know many people probably play something similar to this:

Keyan Farlander + Stay on Target + Fire Control Systems

Blue Squadron Pilot + FCS

Blue Squadron Pilot + FCS

Gold Squadron Pilot + R2 Astromech

Exactly 100 points. I am not sure on the Y-wing... I took for the hit points.

I'd probably switch out the FCS for Advanced Sensors on the 3 B-Wings and switch out the Y-Wing for a Prototype A-Wing with the refit.

The Advanced Sensors let the Bs take advantage of all the red moves on their dials without losing actions. The Prototype will do the same damage as a Y-Wing but give you a zippy PS 1 blocker.

So lets say you don't have 3 advance sensors... I have 1...

If you only have one Advanced Sensors, put it on Keyan since you'll be doing red moves with SoT almost every round.

I think think I'd rather have a Prototype instead of a Y-Wing without a turret as it brings something different to the list. You've already got a lot of low agility bulk in the B-Wings. Taking a Prototype with the refit leaves you with 3 points. I'm not sure where I put them.

Another alternative for a 4th ship would be a Z-95 with some missiles.