In retrospect, TZY hasn't won anything when the switch to HX800 happened from the start of the year. This, when the TK7000S netted her the SS Finals in Dubai on top of the HK Open (IIRC), really really makes me wonder if the gear affected her to the extent it didn't work out. CTC on the other hand, has been going up and down. Upon signing with Yonex, he held the ZF2, going down to VT70ETN and then VT80ETN. Then now, ZF1.
I guess CTC is just experimenting at the moment to find what suits him. I think it's easier for singles players to change rackets without it affecting their game too much.
Yoo didn't switch back to the Brave Sword at all during the whole game. He was using the Jetspeed throughout match. My guess is one of the reasons why he kept looking at his racket was to check to se any strings have moved out of place during those rallys.
It's a French Brand, Artengo. Not really famous for badminton even in France. I think he has a very personal racket not one of those available for public (Artengo doesn't make really high-end model).
LCW should have dyed his hair half orange and half green. Or maybe Yonex wouldn't pay him enough for that.