I noticed that when a strat bomber breaks the personal shield of any unit that has one (including harbs), the unit takes twice the remaining damage to be dealt by the bomb. For example:
Ambassador (3000dmg bomb) hits aeon shield com with 11000hp when the shield has 1000/29000hp left. The shield breaks and the com takes 4000dmg instead of the 2000dmg that one would expect.
A more obvious example is simply an ambassador dropping on a titan (1200hp shield/2200hp main). The titan dies as it is actually taking 3600dmg ((3000-1200)x2) plus the initial 1200hp of the shield, for a total of 4800dmg.
This creates a potential penalty for having a low shield of upwards of 3000dmg depending on the strat bomber used. It has probably contributed to some questionable com deaths as well.
In contrast, when a strat bomb breaks a stationary or mobile shield, the bomb is used up and if it has a high enough radius to reach the ground (such as an ambassador or revenant dropping on an asylum), the bomb does the normal remainder of its damage to the units (no 2x multiplier).
What do you think? Do I have too much time on my hands?