Use Lesser Reincarnation to get Completionist Back?

[bohemian3]

I'm on my second past life as a rogue 4 /fighter 12 - previously had completionist feat but with the new class, no longer do which I understand that that's cool.

When I hit level 20 can I do a lesser reincarnation with a +1 wood to swap out one of those classes and change it to warlock? Then do a true reincarnation which would give me back completionist status?

Actually, I want to play warlock my next life, but having the +3 magical resistance past life along with completionist now seems more desirable.
I think I can do that - but it does kinda feel like cheating.

[SireUris]

You'd have to eat a +5 heart to get those rogue levels out. +1 heart means a respec of your character in which you can change the class selection of _one_ level of your 20.

http://ddowiki.com/page/Lesser_Reincarnation

[Faltout]

To get the past life of warlock when you TR, it needs to be the dominant class. That means basically to have more levels than the other classes.
Adding a level of warlock in your build will not change anything and a +5 heart will not change anything either (since fighter will still be the dominant class). You need at least a heart of +7. And since that does not exist yet, you'd need a +20 heart.
Otherwise, you can perform 2 subsequent lessers with +5 hearts for a total of 10 class changes.

[bohemian3]

Got it - thanks. It did seem too easy. I thought the +1 meant you can change one class, not one level of one class.