Hellfire Amulet crafting

I would like to see some adjustments for crafting hellfires. The odds of crafting a
“GREAT” amulet are so low. To start only a few builds recommend using them and even less actually use them due to the frequency of decent rolls. By my own math a perfect amulet would be ruffly 1/25k chance. Over the years I have crafted close to 4k amulets and seen 11 primals. All of which are worse then my perfect normal amulets I have saved. Even though I know the time I spend killing ubers is not worth the lousy 1-2% damage from an augment I still would like that perfect piece sometime if ever.