When to multiply?
In personal scale combat when using Destructive trait
Roll damage dice and apply Effect. Say 8. OK, I have that much.
Then apply the x10 to get to 80 damage and then apply armor (say 3) and protection (say 8 for a stone wall)? 69 in this case?
Or do subtract armor and protection first, get -3 in our example, and then have no effect even with Destructive?
In starship combat there are also Destructive trait and also the multipliers for bay and spinal weapons. Where do the multipliers happen there? The bullet point on p 168 of the Core Rules specifically states "AFTER TAKING INTO ACCOUNT ANY ARMOR..." emphasis mine. But if that principle applies it seems to be really reductive of stuff like final mounts. A spinal hit should pretty well eviscerate a free trader.