Diving off of the V

So I just got certified, I'm a GREEN open water diver as of this weekend. Great thing about the course is that the instructor allowed us to take the V out on the Gulf for the open water dive! She handled perfectly, made me want to take the for sale sign down.

I think there are a few divers on the board, I'd like to know of any tips you have for diving off of your V... tank placement while underway, swim platforms, etc. (Any diving tips overall would be helpful considering my lack of experience) I dove in the Marines, but minimally and not for pleasure.

I'm really considering keeping her after this weekend, I couldn't have been happier with the performance.

Thanks
Dan