I was just playing around with a YWing build and came up with the following...What do you think?
Unnamed Squadron
33
Syndicate Thug — Y-Wing 18
Blaster Turret 4
Ion Torpedoes 5
Proton Torpedoes 4
R4 Agromech 2
BTL-A4 Y-Wing 0
Shoot with the primary, BTL-A4 allows a secondary turret to fire, spend the focus to fire and R4 kicks in to give a target lock to be used in that turn or in another. (Too bad it cant be used to fire one of the torps that turn!)