I have tried double ghost lists and had a lot of fun with them. My latest looked like this: Lothal Rebel, FCS, autoblaster turret, Gunner, Tactician, and EU x2. It has a decent matchup against aces because at range two you can stress them and at range one you get autoblaster, plus gunner fcs helps too. The EU helps get into range one of U-boats from outside range three on the previous turn which puts you in a good spot. So far the only game I lost with them is against Corran and that's because I let him get behind me and couldn't catch him again. Overall I think double ghost can be a thing but the amount of ordnance in the meta right now makes it hard.

I faced a double ghost list yesterday, wrecked my single ghost list, and barely lost to other hard hitting lists like Bossk, Ndru, Manaroo list.

Really good setup for double ghosts

2x Lothal + FCS + TLT + EU + Weapons Engineer

They just bum rush with EU for range 1, attack, get their two TLs to choose whatever target they want after, fcs keeps locks on two ships. TLT for arc dodgers with TLs. Very small bubble at range 1 on sides and rear.

I tried this last game night:

39: Lothal rebel w/ autoblaster turret, fire control system

40: Lothal rebel w/ autoblaster turret, fire control system, Zeb orrelios, Ghost

21: Ezra, Rage, Chopper, Phantom

I played against triple jump masters. I got them to string out a bit so only two fired torps on the first exchange. Between an asteroid and an evade token I only lost 6 shields! Meanwhile the Ghost flanked and created a giant traffic jam and tore them up at short range.