I've tried Ace 121. I think... It's black in colour. I would say the shuttle perform better than Protech shuttles (white one). Most durable i would say.
i think many shuttle now is better than protech.kx 121 and 131 is a shuttle that is really worthly for it for the price u pay.
I have no idea because i've got no chance to test it out yet.I just bought the KX131 shuttles which is RM35. I wonder is the shuttle durable?
I have sell Hai Yen shuttlecock. This shuttlecock made in Vietnam. Anybody interested to buy this shuttlecock can email me. My email is: ngtan123@yahoo.com thanks