[Quoth]

Yes, my point. KFX isn't really about features for real ebooks. EXISTING azw/KF8 could do kerning and hyphenation like epub2 simply with Kindle FW updates. KFX is about more DRM, more control and optimising whispernet a little to reduce Mobile network costs. Also KFX is contrary to Publisher DRM choice as there so far is no DRM free version.

I'll continue downloading AZW3 versions from Amazon and reading on my Kobo Libra.

Select "Transfer via PC" and buy physical Kindle if you only have an app.