Does anyone know anything about DEFI birds. I googled it and couldn't find anything. The proshop at my training centre back home has them: http://leesbadminton.ca/proshop-shuttles.html (second row of shuttles) Never heard of them before, and it has a good price.
I rather buy the cheaper WECAN or Victor No.5 or Li Ning A+60/70 but for $18, it does not hurt to try. Why not just buy a tube and try it. If you like it, then you could buy more. It is not an expensive loss if the shuttles turns out to be crap though.