Question about Chronos Dive

This skill has alays been a little confusing to me.

Furemost, it will intitally deal physical prorate.

Then additional hits will trigger additional hits ocer a period of time. max. 10 seconds.

From Amino,

So damage calculatiin for each hit is different. Then... does that mean each hit will trigger (magic) proration?

At the same time, miss, crit., graze, etc., are calculated as a single group... so does that mean the skill will trigger (magic) proration just once?

How would that work though? When will the proragion trigger if it's calculated just one time? Similar to Kunai, would each hit trigger proration in partial dividens of 1, perhaps?

Or will proration trigger as mentioned previously, with each additional hit calculated as one individual proration?

 

all multi-hit skills prorate only once, on the first hit.

Chronos Drive prorates physical.
the additional hits use the magic proration multiplier for damage calculation, but they don't prorate.