I just popped open a tube of Kason KS-45 Standard feathered shuttlecocks, and played a bit with them this morning. My opponent has a pretty strong smash... but something that I,ve never seen happen before happened. Usually, my feather birds die gradually... they lose chunks and peices here and there. But this time, on a particular smash, one of the birds just went *flat*. I mean, the cork itself seems to have broken, without breaking away from the skirt, and the skirt itself, which should be cone shaped, was flattened, as if you had folded a coffee filter, or left a phone book sitting on the bird for a day. So here's my question, anyone used Kason birds before? Anyone seen this "pancake" scenario before? The rest of the KS-45 tube seemed to have okay birds, considering the price (cheaper even than mavis 300s, which is why i got a tube just to try them out) or powerful smash... or defect? Or does anyone have any beef with kason birds?