When to do DLC?

[mentaltyranny]

I have followed the guide at about 95%, including the delay dlc mod. Considering that the game ends at completion of the main quest, I really want to pace myself and do the dlcs when they appear. I just got the Seirra Madre invitation on the radio and I am level 8. I thought after playing fallout 3 (where i also did a delay dlc) I would be fine to start this early. However, when I got there I saw the message recommended level 20, so I am a little confused. Is the level 20 recommendation only for vanilla? Should I be able to handle this dlc? I feels right to do it now...

[MonoAccipiter]

Do Honest Hearts first -> then Old World Blues (15+) -> then Dead Money (20+) -> then Lonesome Road (25+). That way you get to follow in the footsteps of the recurring characters. They're tough though so no need to do them exactly at those levels.