I am currently enrolled in a DM course but I can tell you what I have found so far that I hadn't thought to ask about:
- Do you use your own gear or does the shop provide gear for you?
This is important because I found I had to change my gear to match the gear students would be using. Things like BP/W or even integrated weights could be an issue. I had to start wearing a weight belt again in order to demonstrate removing and putting it back on in the water.
- What are the legal ramifications of this program?
Like everyone has been mentioning, are you covered if you or someone else gets injured? Get things in writing. This will avoid misunderstandings and prevents a shop from changing their mind if things go bad.
- What is included? What will I have to pay for in order to complete the course?
Sometimes they will give you a good price then charge you for extras. If they rent a pool and charge $5 for people to use it, do you have to pay the $5? If you need to go to a training facility and the facility charges, do you have to pay for that as well? My shop gives me free air when part of the program and no charge for pool time but I do have to pay for training facilities not owned by the shop.
- When is high season? How many Open Water students do you have scheduled for the next two training sessions? How many Discover Scuba Diving sessions will you typically do during my training?
As someone else pointed out, I have had audited an Open Water class with only 1 student. Four DMs and one student. Fortunately, I'm in no rush and will have another chance to audit classes in April/May but one guy will be going to the Caribbean to work in May and that one student class will be his only experience.
Additionally, you want to find out about how many DSD classes. There are a few things you can teach as a DM. One is Discover Local Diving and the other is DSD. For DLD, the divers are certified and therefore there are very little requirements for you to handle that. For DSD, you can do the pool sessions but you have to have audited and assisted a few DSD sessions first. If the shop does 2 DSDs during the time you are in training then you will not qualify to handle DSD for the shop. If they have a DSD class every day then you should be able to start making money before getting to Instructor level.
- Will you be officially training on the equipment in the shop?
As a DM I help out with tank fills. I have been given an informal training on the equipment at the shop. If I went to another shop they won't recognize that I've been doing tank fills and I might not actually know how to do it with their equipment. I am DEFINITELY not qualified to do Nitrox at our shop. The shop does partial blending (fill the tank with 100% oxygen then top up with air). I have to be officially trained to handle 100% oxygen so there is no way I can do Nitrox. That government qualification plus the blender training are extra cost.
- Who will be involved in my training?
The correct answer should be one person who is qualified to certify you. You don't want to have a bunch of people having you 'intern' for them. This essentially equates to slave labour. Everything should be going through the person certifying you. This is just good management. The person training you can have you loaned out to another instructor but they need to be aware of everything you are doing. Case in point, I was loaned out to an OWSI conducting DSD so I could add that to my qualifications. Another DM candidate was asked if they could participate in a Rescue Course (as a victim). They said no and suffered no ramifications.
I have seen situations were everyone at the shop was using a DMC. The person training them had no idea. The DMC was always tired.
P.S.
- Do they point out that most shops will hire instructors rather a DM. In the areas I dive, all 'DMs' are really instructors. The only person I've heard of who is a paid DM is also a licensed captain and has his own boat (so he is really getting paid to be a captain and not a DM).