Did you have it standing on end or on its side? I also just got a pack (from Nhaler) yesterday and tried the clearomizer and was pretty happy with it, been puffing for a day and a half now with no problems.
I noticed I get a scorched taste if I set it up on end for a bit, even if its full, the silica just doesnt wick all that terribly well. I've also learned to let the fluid slosh to the underside of the cup before I vape if its been dry for a bit.
On the other had the silica is unburnable so it should dry burn clean easily enough. Also, making a tube from a syringe is dead easy and quick.
I've been vaping a fairly thick and sweet "spiced apple" from freedomsmokes which so far brought a ego-t to uncleanable clogged in 3 days. Which is a shame because I have 4 T attys... sigh....
Next on the purchase list is the giantomizer