I started mine in July 2010 and passed May 2011. It can probably done in 9 months though.
Just our group didn't do it together, it was done with our won teams which meant it was a longer process to assess.
Definitely give it a go if you think you can do it
Do you coach at all with a team? It will help massively if you do, otherwise you can't really put into practice what you've learned.