I saw CZ USA has a trigger out now as well so I am torn.
That’s an easy decision, they are both the same. CZ Custom is just selling HBI’s Theta trigger kit. The CZ site just has most out of stock colors.
https://czcustom.com/cz-parts-all/cz-p10-c-parts/cz-p10c-hbi-trigger-kit-black.html
https://hbindustries.net/store/shop/cz-p10-theta-trigger-kit/