Flash CC - Draw letter animation

I am making a splash screen for a website I am making, and I want one of the letters to draw itself, then expand out into the whole word. I have the expanding part done, but I need to make the letter draw out first.

Animation:

http://goo.gl/jBFdal

I am aware of the masking technique, but I don't want to manually draw it. When I do this, it results in differently sized segments and appears choppy. I also want it to have an ease, which is difficult to do frame by frame. Is there a good method for doing this?

Here's an idea of what I mean:

http://ift.tt/1GUqYh3