It seems that Xu Xin is going through something of a purple patch at the moment (even if the blade is no longer purple), although he looked very tired by the final of T2 Diamond Malaysia.
i have been using my XX Dynasty Carbon FL for a few months. Still not got to the point where I would change from my 2-year old 301 plus H3, but I am getting closer, having been through a bunch of rubbers with encouraging but not decisive results. Currently, I have H3/Skyline 3-60, almost the same as XX himself, just reversed. For interest, this combination weighs 186g, which is just about perfect range for me.
It has become my backup bat now, for when I run out of energy using the 301/H3 combo. The Stiga is a little faster, and requires a little less of my waning strength. With Tenergy 05, the whole feel is too different for me, so the extra speed and ease of use is over-weighed by lack of consistency. Much happier with a Viscaria for Tenergy. This is just me of course, YMMV.