Nope. I've had mine apart. No debris or clogging with the air flow pathway. Just something is messed up somewhere.I have found with these rta clones in general that the airholes have debris in them from the machining process. The Chinese do a great job at cloning but their finish work is not that great. Take something metal like a paper clip, something a little smaller than the air channels and make sure its all clear.
I've heard people compare the draw to a taifun gt2 or kayfun 4....mines no where near that open... Not even close.
I'll most likely wait until I either find a deal on a second clone or wait until the 2nd revision is cloned. Larger juice feed holes and hopefully a air flow path capable of a real draw.