Apologies if my remarks are getting tedious!
I have discovered in FGU damage is not applied in the CST if you just target the ship and drag the dice to the dialogue box. What works perfectly is if you drag the damage dice to the ship you are targeting (just remember to deduct armour after until next update).
Playing with High Guard has made me read the MGT2 Core spaceship combat rules much more closely. Any hit with Effect 6+ is a crit and every 10% increment of Hull points taken (on ships under 1000 tons) adds another crit. Experience from Pirates of Drinax suggests range is crucial and high gunnery skill and a good fire control program can see a lightly armed Far Trader take out a Mercenary Cruiser with lucky rolls! :)
I have not even got to looking at the new weapons in High Guard yet but great to see so many ships and am really enjoying playing with it. Well done MBM!