Question on Throat Bass?

I've been beatboxing for around five months now and I feel as if i am accelerating at a fairly quick pace. I've taught myself a few trickier techniques (It took me a week learn the Crab Scratch) and about a month ago i started practicing the infamous Throat Bass. I'm really starting to feel comfortable doing it although it is no-where near perfect.

After a month , it sounds like this: http://www.youtube.com/watch?v=5v0P_-GCR_E

My question to you is how long did it take for everyone else to learn the techniques and feel comfortable doing them?