And to be honest its not the real stuff. What are 10 days? You are going to learn absolutely nothing. Mediation is a 24 hours a day practice. And it takes a lot of time to just get used to it.
For example, in one form they only tell you to focus your mind on an object (like breathing, or your abdomen). In Vipassna, the idea is focus first, but the next step is to observe your thoughts (mindfullness). Observe, never reject, whatever it is. Happiness, Lust, Greediness, Anxiety. Observe, and let it go. The mind is a crazy machine. More precisely, our chattering monkey mind.
Please read this book if you haven't already. I can't recommend it enough. It has changed my life.
Mindfulness in Plain English - Bhante Henepola Gunaratana