That is quite a challenge. I wish you all the best.

30-40 wpm is very fast after only a week. Which makes me wonder if it becomes easier to learn a new layout if you've gone through the process before. Perhaps the process of learning can itself be learned!?

I am curious though: Why would you want to maintain three different layouts?

I may end up dropping one or the other, but I feel like I'm not going to be able to determine which one I like best until I've gotten up to speed with Colemak.  That won't be a fair comparison unless I'm also active with Dvorak, and maintaining QWERTY is practical since it's the default.  I also really like the mental challenge of switching and maintaining them; I do similar things by training myself to write with my non-dominant hand.

It may be that learning it is faster because I already have two layouts that I know, so I don't have as strong of an association of "this key is always this."  I've also been practicing quite a lot so that I can be competent at work with it.

Actually, I'm learning it because my coworker started learning Dvorak (why not suffer along with him?), and I was curious about the implications of three layouts.  I love Dvorak, but I'm a very "why not both?" kind of girl.

Will do!  I've been logging my speeds on the default 10fastfingers.com basic English speed test just about every day since I started.  I'll probably compile the screenshots somewhere.

At the moment I can't go back into my other layouts anymore, but the same thing happened with my QWERTY when I learned Dvorak, so I'm not too concerned about it.  Once I'm up to at least 60wpm and am not making constant mistakes, I think I'll be comfortable sorting out the different mappings in my brain.