So I was gearing up to play a monk with a Vow of Silence from Ultimate Magic. This is the first time I will be playing instead of DMing in years, and I was excited to try a different roleplaying style and thought me being less vocal would give our new DM more space. However I am not sure how to proceed; my copy of Ultimate Magic is second printing and lists Vow of Silence on page 51 as giving an increase of "1 ki point for every monk level he possesses." Online all the sources say that the increase is "1 ki point for every 6 monk levels (minimum +1)." Which of these is correct?