The two perks down the middle path of the enchanting tree. I am obsessive comp[ulsive about numbers ending in a 5 or a 0, and those perks always made the enchanted values on armor (and sometimes weapons) end with a 2 or a 7, which bothered me immensely. It shouldn't have, but I am insane when it comes to games. I used to restart from the most recent load if I killed someone and their body didn't land in a natural, normal way. God that was so annoying