EDU Attributes questions

Hi.

What's the difference between using the following attributes in "stat_pri_attr" and "stat_sec_attr":

1. ap, thrown

2. thrown ap

Using Caligula Editor I came to know that the "thrown ap" means "armour piercing when thrown". But isn't that equal to add "ap" and "thrown" separately?

Also, I don't know why to use the attribute "thrown" when I can declare in the respective "stat_pri" or "stat_sec" that the Weapon_Type is "thrown".

Thanks for your help!

AFAIK "thrown ap" and "ap, thrown" are the same.

I'm not 100% sure but I think the thrown tag in the stat_pri is used for the formations in order to differentiate between archers and skirmishers (since their class is the same). What exactly is the purpose of the attribute, I have no idea...