I really think You either should learn to argue or should take a break in posting here.
Ask Yourself: did so far each and every J-10-regiment take part in such exercise ? And if not - surely not - why then do You think they are "operational" too, even if they did not take part ?
IMO it's simply that the J-10B is too new to take part this year ... so maybe next time but I really don't understand what this has to do with the WS-10B being operational on the J-10B or not.
I really have that strange feeling, You are obsessed, You don't want to see the facts and You are simply able to take a black and white view: Don't You think there are more reasons than the engine issue.
So please stop ending each and every post with "J-10B has not entered service yet and waiting for new engine" regardless all other evidence.
But if You like keep on dreaming ...
That is nonsense. You claimed J-10B with serial number is long spotted last year. It is not that new if it has commissioned already. As a premier fighter, it shall every right participate in Top gun competition to futher elaborate for the doctrine. But it didn't.