Neither ace in your first list are well enough equipped to really make a difference. Poe needs Autothrusters in the worst way and Corran really needs Fire Control System to make the most out of his ability. Both will get arc dodged by Vader, Fel, or the
VI versions of them. Drop the B-wing to free up points and replace it with a refit A-wing or Bandit Z-95. Try something like this:
Corran Horn (35)
Veteran Instincts (1)
Fire-Control System (2)
R2-D2 (4)
Shield Upgrade (4)
Poe Dameron (31)
Push the Limit (3)
BB-8 (2)
Autothrusters (2)
Prototype Pilot (17)
Chardaan Refit (-2)
Total: 99
View in Yet Another Squad Builder
Giving Corran
VI allows him to hunt down Fel or Vader much easier since he'll be moving after them. Shield Upgrade allows him to get a little more mileage out of R2-D2 and Fire Control System means his End Phase attack will always be modified. Autothrusters on Poe ups his survivability considerably, especially against Twin Laser Turrets. Use the A-wing as a fast blocker against an enemy ace or turret.
Cobra could really use
EU to maximize his actions and pilot ability, so drop at least the title (and probably Gunner) off of Latts. Still, Push the Limit on Cobra is kind of a subpar (even with
EU) and is better served using Predator. Give Latts Weapons Engineer to maximize his pilot ability. Try this instead:
Talonbane Cobra (28)
Predator (3)
Glitterstim (2)
Engine Upgrade (4)
Cartel Marauder (20)
Latts Razzi (33)
K4 Security Droid (3)
Weapons Engineer (3)
Bossk (2)
Anti-Pursuit Lasers (2)
Total: 100
View in Yet Another Squad Builder
With Weapons Engineer, you should be able to maintain target locks on both ships against a two ship list. The addition of Anti-Pursuit Lasers will discourage your enemy from sending their ace in close range as the stop maneuver combined with the large base means you have a good chance of causing a collision and giving you a chance to hurt their ace. This build gets the most out of Cobra by allowing Predator to act as a mini target lock and gives him Glitterstim. You could switch Predator out for
PtL, but I given his limited access to green maneuvers on his dial, I think Predator works better.