I had a run in this am with a Boss member who apparently can't see when three skells and a mage are pounding on a mop. Oh wait, he did that one on purpose.
I guess I got too close to that more and more obviously account sharing mage of theirs, the one who is either superhuman and needs no rest at all or else has found someone to help him do his Fire Valley march. And if you're gonna do that, at least be consistant in knowing or not knowing English and deciding to heal people or steal every mop on the screen.
I think it's a case of, "Mom, where are my meds??" or, cheetos and grape soda are not the breakfast of champions. That combo (I envision some of these guys really thinking that cootie shots exist and that girls are yucky and that there's nothing quite like a skid of Pringles dropped off from BJ's at your front door with a keg of orange soda.)
OK, I'm done...so anyways, with Fire Valley so infested with the cockroaches of Aden, I went to the MLC.
First I found this:

I guess LOA got boring but he seems to be back. :)I can see the attraction of LOA but once you've had a high level mage, I also can't see starting over again.
Then after not finding Caspa, I went on to 5 and then 6. Now you have to dismiss at one point to get thru 5. And when I went to resummon on 6...oops! No mgems. Even bigger oops:

This was waiting for me. I was going to lead it into a doorway but just then a very nice Cerb dropped me three mgems. So I quickly summoned and ran over and wacked at it, and got oh, I'd say maybe a btele? There really wasn't much more exciting than that in the summons when I dismissed them later on.

Resummoning
You don't have to resummon on 5... you just have to take the long way to 6 instead of the shortcut.