I might have been unclear Morien. My issue is exactly yours, the example they use is 15 + 5, but what happens if the bonus is +10? We know how to treat a 25, but a first time reader might figure it out, but in a Quickstart it need to be stated in a much clearer way. In fact the best way, might be to have the skill 18 better explained. In fact, the example make it seem that the skill of 18 only benefits from +2 as « however, their effective Skill is boosted to 20. ». That need to be better unpacked especially for a Quickstart.