Quick questions: javelins with dueling style and natural weapon proficiency

[ProsecutorGodot]

Yup. And like all the others you have failed to prove with RAW that the weapon is "in one hand", so it does not get the Dueling fighting style bonus.

Technically, you've failed to prove any RAW that says the weapon leaves your hand before a damage roll is made. We could be generous and say neither interpretation is any more valid at this point, 23 pages later.

Personally, I'd say you've got more work to do to prove your case, I'm not convinced.