Your PADI Instructor Manual has to be the latest version. You can have it with you in hard copy or a digital version, but you must have the most recent version. Some people in the course have been Divemaster for a long time! There is a great chance that your manual is not the latest version anymore. You should also download and read at least the last 4 PADI Training Bulletins, which can be found on the PADI pro’s site. If you are crossing over from another organization, no problem, we can provide you with these files.