The pre-med advisor at my school said that in his experience, the hours for any given activity on your application are pretty irrelevent. Schools just care about the activity itself and what you say about that particular activity. He also mentioned that most people inflate their committed hours to any given activity so he advises that most people do not even worry about mentioning "hours per week devoted to activity." I was wondering what everyone else's opinions are with regard to this topic and if past and current applicants really stressed this hours business. Thanks!