I have run some numbers with BiS for white mage sets and found that, assuming 4 DET = 1 MND, a set maximizing this ratio between i130 or WoD gear (Testing 6) wasn't quite as good in healing as the full i130 set prioritizing DET (Max DET) but with Crit rate factored in does make a slight difference. This is assuming that the heal calculator from http://valk.dancing-mad.com/calculat...ng-calculator/ is correct and from the minimal testing I have done it seems to be. Here is the spreadsheet I made with my results:
https://docs.google.com/spreadsheets...it?usp=sharing