Politely make your requests know to the DM(s). Once they see your skills, they will begin backing off. That has been my experience.
Remember, there are those that would stress what you mentioned was not enough attention.
Be kind to your DM for caring enough to want to help. I've been on boats where to them it was a chit-chat ride. Either way, give everyone a chance and the benefit of doubt. Remain polite and curtious.
Remember to tip your DM's for every dive, whether the are with or without you.
They are there, behind the scenes for your benefit and safety.