Direct Hit for Healers

[Furious]

I'm suspecting that DH will end up being the best overall DPS stat for healers in the long term and as mentioned elsewhere, it's a good idea to throw at least one DH materia in regardless just to unlock the ability.

It won't. The ratings are already known. Crit will be stronger from around 3000 rating (can be much earlier than that, especially if you have a bard) and will only get comparatively stronger thanks to quadratic vs linear growth.

After this point, crit will always be better than any other stat for throughput. Usually, increasing one stat increases the relative value of every other stat, but because of the way that crit scales, crit increases its OWN value more quickly than it increases the relative value of other stats.

At some point it's likely that it will gain diminishing returns, but that wont be any time soon.

TLR; it's always going to be an extremely tenuous decision to use DH as a healer. For the first ~1000 or so rating determination scales better, for the next ~1500 DH is EXTREMELY MARGINALLY better and doesn't effect healing at all, and after that crit is better and gains more and more relative value the higher it goes.

Here's a spreadsheet I made based on the currently known ratings. It's probably got some mistakes in it but by and large the shape of stat growth will be right. Make a copy, put in your own numbers.. You can see that once crit overtakes DH in terms of "% per 100", it never reverses again no matter how high you go. This is also represented in the graph on the second sheet.