Answer 1: Im playing hardcore i like to have always max resist.
Answer 2: dont really matter, that's why I'd like to know what I could put on my tome to replace my UM rune.
you can test out a random 35-39% ed jewel that you find, though its a total waste even if it did net 3k, i would just keep the um in it. 3k dmg isnt much on ES Lock.
all these noobs stressing over dmg this dmg that when its just overkill is a sight to see.