Guild Wars 2

First of all sorry about my language/spelling.

Then I was looking for advice/confirmation from the community as I have read so different information about sigli that I prefered to come back to the roots here.
I play dual pistol, in my right hand I have one with a sigli of earth in my left hand I have a sigli that stack an attribute when I kill stuff. When the stack reach 25 I switch to an other pistol I have been using until now a sigli of force but indeed the result were not that great as I assume due to the shared internal cooldown for activation on proc. I was potentially thinking about going for a sigli of battle (3stack of might upon swap) but then I have seen that the 9s internal cooldown generated from this one might prevent my sigli of earth to proc. Is this true?
If this actually really generating a 9s internal cooldown that prevent my earth sigli to proc I am a bit clue less of what I should use as a 2nd one after getting my stack (5% of crit change to add some bleed, regen some heal on kill, regen some endu on kill ) none of those 3 are really sexy. I play mostly WvW (with a 30 10 0 30 0) condition.

thanks in advance for your time and your comment