I think it's the other way around, LS is more prefer to form a static group to tackle end game. Why? Because anyone can join it, no commitment, and you don't have to leave your FC. I have join many FC before and it never work out, they always have their own Static Group and you will never get to do coil with them, they only take you in when no one show up or you there for a replacement.

I say just make a Coil LS with the same time zone and setup a time, and start getting enough people in for it. I have never experiment coil until I join a LS, now it work out nicely.