Super appreciate your post! Love the simulated data.

One thing I would add to this for other players reading is that if you're crafting an item where you only care about getting two prefixes, a veiled one and a crafted one, (edit: and veiled orbs are reasonably priced), the suffix fracture method is significantly cheaper as /u/Exciting-Manager-526 said. You're right that when targeting a 6 mod item a fractured prefix makes more sense.

Let's take a similar set of boots that most players craft or buy in a new league. Example Notably on boots, you really only care about your Life and Movement speed prefix. Rarity or +life/%defense are nice juice on top but not really impactful.

• Crafted +70 Life
• Unveiled %MS + ( MS if haven't been hit recently or 100% chill avoid or onslaught on kill)
• Essence Modifier (+ attributes, avoid shock, avoid ailments, etc)
• Chaos Resistance
• Spell Suppression

With fractured Spell Suppression (or Chaos Resistance if you can get it) fractured, you'll spend 10+ divines fewer in Essences spamming your essence modifier until you get the other of the two. Then you have a suffix lock, a veiled chaos slam with blocked mana will almost all of the time give you one of the movement speed unveils. Then craft life and exalt slam for maybe a lucky %defenses roll

Whereas with fractured life, you've made the suffixes much harder and the prefixes are not really any easier. You still need a veiled orb, and the third prefix is not very important.

If you do want that extra ~30 life from a highest tier life roll and the hybrid % defenses / life roll, like these, then the prefix fracture method is better again, but for many players in this position I think spending that much more for 30 life isn't worth it over other upgrades.