I've never used Taobao, but I'll look into, thank you for the recommendation 🙂 I'm hoping D1 gets released to the US or Europe so I could buy some on discount from TT11 since they usually have J1zJ2, and J3 on sale a lot or possibly PROTT.vip since they already got Zhang Jike's blades on there.
Based on my experience with H3 vs D1 (Unboosted) on Forehand:
Spin: H3>D1
Speed: D1>H3
Blocking: H3>D1
Chopping: H3>D1
Counterlooping: H3>D1
Arc: H3>D1
Serves: H3>D1
Pushes: H3>D1
D1 gets a lot of spin, but the top sheet has less tack than H3 as well as the sponge having more bounce so they could push and attack my serves easier than with H3, but I was able to consistently loop with it and give my practice partners a lot of trouble with blocking the loops. D1 feels faster due to the sponge having more bounce and overall was easier to play with. H3 is easier to block with since the sponge really helps to kill the speed on the ball, and I didn't have to adjust my paddle angle much compared to D1. H3 has more spin with chops, but I felt that D1 was maybe slightly harder to chop with, but I think it has to do with the sponge having more bounce than H3 does. Counterloops were easier with D1 since it didn't require as much power from me, but in terms of beating out my opponent's loop, I felt H3 beat it out with more topspin, even though D1 felt faster. When looping from farther back on the table, I had to hit higher than I would normally need to with H3, and I further felt it when I was looping against long pips yesterday that if I didn't brush enough and hit higher, the ball went into the net. Both rubbers have a lot of spin on serves, but H3 beats it out especially since I was able to consistently get ghost serves with H3 while D1 I couldn't be as consistent due to the sponge being bouncier and topsheet having slightly less tack (depending on if you get a lucky H3 sheet that has good tackiness) H3 sponge really helps with making pushes shorter since the sponge helps with the deadness, but D1 was a little worse than that. Next week I'll play with D1 and J1 boosted so it should play better overall, but I'm not sure if it'll beat out H3 since the sponge really helps out with
I still need to get used to J1 on the BH because I feel the arc is higher than when I used H3 (Orange and 38° Blue Sponge) or Tenergy 05 Hard on my BH and I overshot it a few times, but my loops and flicks have good power and spin. I'll have to use it for a few months to see if I like it, otherwise I might just go back to H3 on the BH and maybe tryout 39° Blue Sponge.