I don't really keep up with these trends, I know FZD tried Zyre as it was mentioned in here a few times...but I assumed he would go back to H3.
Out of interest, what does he use now? Stayed with Zyre?
I think that for DHS to lose market share then Butterfly would have to take over in China.
With H3 being so cheap and durable I cannot see how expensive Butterfly rubbers will ever become the main choice there so I reckon DHS are safe enough in that regard.
I can see your point (even though the circumstances are far fetched) but my reckoning is that even if FZD comes back and beats WCQ to Olympic gold DHS will still keep their market share.
H3 is perfectly suited to top Chinese TT and I don't think another rubber can be made to surpass it, not unless they change the ball again, or something even more fundamental like the table!
FZD now plays with Zyre 03 in FH (I think still D09C in BH). H3 suits Chinese TT because of the table + ball combination. Apparently, the ball in china spins a lot more than in Europe. SO H3 makes a lot of sense. Many chinese, including FZD struggled to play in Europe. They play on Tibhar table and some non DHS ball.
I did experience the Tibhar table, and indeed, it sucks. Don't grip the ball spins, and somehow absorb the spin. For exemple, when you do heavy topspin (with H3/H8 especially), the ball accelerate and pop up after rebound on the table, which make the ball hard to deal with. But, with those shitty table and maybe shitty ball, that make spinny variation less of a thing. More power oriented game.
My point is, if FZD somehow keeps the Zyre to play and win with it, it might send an alarm to DHS to develop a new rubber. H3 is almost 30yo. Like you said, I think H3 is hard to replace in china. But I think, it would make sense for DHS to find a replacement, with the DNA of H3. Especially if the new generation of Sora and Felix can beat the chinese in WC or OG.
I would imagine, maybe a Zyre with tacky topsheet for exemple. I am playing with ESN sponge on a very tacky topsheet (Vega China VM) and it has so many qualities. It is not a European Hybrid with light tack, but true chinese tack that lift the ball for months.