And thus you have misunderstood his argument. Expose is not a good way to increase average damage on a 4 attack ship. Expose and Focus both result in 3.75 average damage on a target locked 4 dice initial attack. At range 1 Focus gives 4.6875 damage and Expose gives 4.5. Plus the Focus attack doesn't always require the focus.
So given Expose reduces your agility by 1 why are you using it?
You can't focus+expose with that phantom build.
5 target locked dice average 3.75 hits, 4 focused 3 hits. FCS+weapons engineer mean you will almost always have a TL on your target. Range one: 6 TL dice=4.5 hits, 5 focused=3.72. Not to mention the chance of getting a crit through. Only focus+target lock can match the average hits of TL+one dice without the decent chance of 5-6 hits which can never happen with 4-5 dice.
It also makes your phantom draw a lot of hate, that's useful in a ship that can dance like echo.
Um so? I was assuming you had target lock for all my calculations. I was giving the weapons engineer + FCS.
Sure you eliminate the chance of higher maximum damage and also deal slightly fewer crits with focus, but what you lose in the top of damage you gain in the fact you do much more consistent damage.
Since the dice are fickle - I would take the Focus every time. Especially given there is a non-zero chance to not use the focus and thus have it available for defence (which perhaps as you pointed out is not needed as you never get shot)
Edited by Bilisknir