These birds offer good flight and speed but poor in terms of durability. The bird couldn't last for 1 match (2 games - 21-6, 21-18 - Intermediate level players). We compared with RSL tourney 1 and it seems to offer much better durability. All the birds were hydrated 24 hours before use.
However these birds offer good flight and speed. Even with one or two broken feathers, the bird doesn't wobble. After finishing up the match, i can safely retire the shuttle for training or practice and it serves well.
I would recommend users to play with one bird for each game and then retire them for training.