Isn’t China supposed to have downloaded all F35 data direct from LockMart already anyways?
Anyways, back on topic, in the question of visibility between F16 and JF17, there is no question that the F16 bubble canopy offers far better all round visibility. However, there is still one disadvantage to that design - no mirrors.
Probably merely an academic difference in a one-on-one fight, but I can see it being valuable in a multi-ship engagement.
Mirrors might be redundant on 5th gens like J20s and F35s with all round camera systems and HMDs, but it is still a good dirt cheap addition for the likes of the JF17 that can give its pilots a slight advanced warning in the right circumstances that might just save him and his plane.