I know, seems a bit silly given how much of a mundane chore healing can be to the point of doing damage just out of boredom, but if healers are going to get more healing abilities that can't be self-target or will only work upon healing an injured ally in combat like the new White Mage healing skills, then why not have something like a healing dummy that can be used to gauge healing for those abilities?

Fairly simple measure; just have a healable dummy that resets itself to half health that puts you in combat upon healing it. And afterward, your friendly neighborhood White Mages will finally be able to know how much their Plenary Indulgence spell heals for (because I've asked nearly a dozen WHM mains, and they don't even know).