I'm mocking up some 60 point lists for a 2v2 game I'll be running, and am considering making one of the squads a double phantom. I've hit a little bit of decision paralysis on upgrades to add to either the sigma or shadow squadron pilots though, as they don't have elite pilot training available.
Which upgrades are good for these ships? Is are their relative pilot skills high enough to warrant taking advanced cloaking device?
While Advanced Cloaking Device is great if your ships shoot first, it doesn't do much (aside from let you decloak every turn) if you put it on a low PS ship.
I'd go with Stygium Particle Accelerators. This way, you get a defensive bonus that doesn't depend on PS. It's kind of like PtL in that it gives you a free Evade action whenever you take a cloak action, and you can still Focus for attack when you decloak and have a defensive token to spend, too.