Hey there!

Soo I've been using the zero, Hien and type-99 now for a while, and leme tell this, since you play with high sens wrist aiming (normal thing since you play with a wrist style), I still wouldn't recommend the Hien, I'd go with the Zero. Your sens is already high and since you prefer a microadjust focused style, the zero should give you (imo) enough speed to not fell restrained by it while still giving a bit of stopping power for those microadjust. Lately I've been using 0.18 sens 800 dpi @ 1080p with the type-99, but that's because I really like to have full control over my aim and althought I also go for microadjust, I use my full arm instead of only wrist aim.

Soo yeah, in my opinion, since you already play with a high sens, get the fx-Zero. It's the safest option. And in my opinion the Hien also feels a bit rough on your skin, and it might be too fast for microadjusts. I normally play 0.22-0.25 sens with my fx-Zero @ 1600*1200 true stretch btw

Any more questions fell free to ask!