This is just too clever.
Great idea, will definitely be using this. Thanks for sharing!
I just noticed that I never told you of my stealing this. It's brilliant! I ended up combining it with the inheritance rule: As long as a player picks from one and the same matrix, their characters get to inherit from each other (albeit only what's actually recoverable and with the usual 10% tax of course).
That's excellent! Yes, in a sense this sheet is like a meta-character, representing numerous PC reincarnations :)