After some time I have decided to calculate my Damage Modifier of the drone.
The drone I have calculated damage for is Imperial Nave Praetor.
I have next skills: Heavy Drone Operation 4; Drone Interfacing 3; Gallente Battleship 4;
According my calculation I should have next result: 1.68 * 1.2 * 1.3 * 1.4=3.66. In pyfa, I am getting 3.6 as well.
However, in the game it shows 3.4.
Do I miss something?