Arcane Armour mastery Feat - Question

[Carog the Fat]

Hi,

I hope someone can clarify this for me.

Arcane Armor Mastery* Arcane Armor Training, Armor Proficiency, Medium, caster level 7th Reduce your arcane spell failure chance by 20%

To get the cater lvl 7, to qualify for the feat, can I be: Fighter 1/Wizard 5/Eldritch Knight 1, with the trait Magical knack- Wizard(+2 trait bonus to caster lvl)?

I looks like it adds up I just wonder is it PFS legal, this is my first character and I haven't played any RP in many moons.

[lareman]

Your caster level with the trait is 7, so yes, you do qualify.

[Dolanar]

It should work, you have 7HD & the +2 compensates for the 2 dipped levels

[Carog the Fat]

Thanks