Man, that was joust a rough example. Not a word of god.
What i actually meant is that at rank two, you would have 5 skills and be able to change two of those skills - limited to those of the lowest requirements (level) - once.
Not any skills, however times you like.
At level, or rank 3 you would be able to change three skills, out of seven you have. Not all of them, not a gazillion times - but only once.
- And i meant that only as a very general example - just to get the idea across.
I would expect, naturally that most of you would start crying and demanding more then that.
For free.
My suggestion is different because it would alow "more of that" but it would not be free.
You would get "more of that" by investing points into that skill.
THE SAME as you invest points into that skill to get reductions of AP cost, instead of just getting it for free - or more correctly put - for nothing.