Guild Wars 2

I’m rolling a ranger, I found tons of bugs related to the F2 skill during the tests of last few days:
1. Is F2 skill a pet skill or ranger skill? In key setting , it show F2 is profession skill, in my trait of Commanding voice, it says pet skill (F2) recharge faster, so whic is it to be?

2. F2 skill is not actually buffed by any trait , any runes, any gears, whatever what u do, it just keep the original attribute even the text is changed.

3.The trait ( speed training : reducing pet’s all skill ) does not work on F2

4.Lynx’s F2 skill is 2stack bleed 20s 1700dmg,
In fact it is 4stack bleed 10s 1700dmg

Eagle’s F2 skill is 1stack bleed 15s 638dmg 43*15= 638?
Fact 2stack 15s 43dps*15s*2stack=1290

I can’t belive all these basic game data could be such ridiculous wrong.