Did you notice that in OT we never see a ship locks any proton torpedoes or any missiles to enemy ships? That happens only to PT as well.
If we go with ady's approach cut the torpedoes from PT. OR add torpedoes to OT as well. ROTJ may need more firepower as the end battle.
Give the fighters something to brake on DS or though their navigation into it. not having an empty hallway.
-Angel