Well, then I'm really very super happy for you guys, you really must have a great bunch of luck stuck up in your Deckbox.
Elves, don't always combo, we only run 4 Glimpse, so we don't always draw them, and they get countered many times, and then the fall back upon an aggro plan really isn't that big.
Sure Elves combo many, many times on turn 2, 3 or 4, but then something like 15% of the games, we will just sit there and do nothing with your builds, because we didn't get Glimpse or Summoner's or your last hope, Warcaller, got countered-sworded-pathed-even bolted if we haven't comboed and we play it with 2 counters. So yeah, I support Cloudstone Curio, because it doesn't just count as Glimpses 5 and 6, but it doesn't helps us not fizzling while going off and running out of dudes.
I really don't mean to criticize, but I don't want you to act as though your deck never fails, or doesn't frequently fail, because it does, many times, otherwise we would be Tier1. That's why I accept it and try to work solutions out of it, not to make the fastest build ever with less CMC mana cost general. I just try to figure, stronger, more capable of reaction to any situation, and more consistent builds even in unlucky situations.
So far I'm doing good, but I'm not liking your "I beat ass" attitude ;)
You can always "bounce" it with Wirewood, and recast.
I think your list could use 1 or 2 of these guys, plus adding some green sexy dudes sideboard:
Dauntless Escort,
Gaddock Teeg,
Harmonic Sliver,
Qasali Pridemage,
Vexing Shusher.