I have been part timing as a DM for a long time and it is now time for me to step up and get Instructor certification. I work with a limited number of students each year. I only work with scouts and its not my full time job. In order to keep my costs down and therefore the costs to the kids I work with, which agency would you choose? I don't mind extra cost for value, but lately PADI seems to be costing more and giving less. Maybe thats all of them, but I only know PADI. Any input would be appreciated.