Players are talking about how to improve skills or buy new ones.
So I gave them the book rules: Number of ranks x5 = XP cost, and +5 if they're not in your career or spec lists.
But I want to impose a restriction that a character can't gain more than 1 rank per skill per session played. Makes sense, right?
I don't see why a player should gain like 3 ranks after one session of play, even if he does have the XP to buy it.