Is there anything short of a recost that would make Slaved Turrets usable over DTT?
Flotilla with Turbolaser slot and only front battery of a red?
Yes - make it activatable.
"Before a friendly ships attack step, it may choose to only attack once this round. If it does, while attacking a ship you mad add one red die."
Still not sure why ST is compared to DTT - keep in mind that you have to sacrifice a die when using DTT, so you basically get a very nice version of a reroll.