Is it even worth it to aim for XVI ?

Out of the 50 last time i corrupted Waystones i got 3 that upgraded to XVI , and more than double that regressed to XIV . Most common outcome is losing the +X% Waystone Finding mod ( i have no problem for substain XV so whatever ) ...

Anyone finding the jump to XVI worth it so far ?

I corrupt every map. every single one.

T16's aren't the only good thing to get out of the corrupts, the 6 mod prefix only ones and 10 mod waystones can arguably be better for loot. T16's are mostly for xp / juicing bosses up to highest possible level from my experience.