Ludwig
Grandmaster
Find yourself a lockpicking runebook at a rune library. Mark your own book up from that. Cycle through all of the chests multiple times a day. Sometimes you'll catch all of the fresh respawns and sometimes someone will beat you to them every time. I got from 95-99 in a single, casual weekend of 2x gains back when we were having a lot of crashes. On the bright side, without 2x gains, you'll earn hundreds of thousands of gold pieces lockpicking dungeon chests from 95-100.