I do and in fact I just have read the full first draft of the one I wrote for NaNoWriMo last year, because I'm about to start editing that. I think it's important to do that, to get a feel for the big picture, the story as a whole, not only the chapter in front of you. How else will you get a feel for the pace and structure of it? I always read it on my Kindle now.
Whether you should read yours again depends on what you've done so far to turn draft 1 into draft 2. Have you made a lot of structural changes, moves a lot of scenes around? Have added new scenes, cut others. In which case I'd say yes, read it again to get a feel for the new shape of the story. You can make notes as you go if you want, about the larger things that need changing to have it make since in the new order.
Or maybe you want to make those changes to have it make sense, still quite roughly, and then do another read.
But either way, is it going to harm you or the story to have another read now? It's a few hours out of the many, many, many hours of work you'll be doing. So why not?
Whether you should read yours again depends on what you've done so far to turn draft 1 into draft 2. Have you made a lot of structural changes, moves a lot of scenes around? Have added new scenes, cut others. In which case I'd say yes, read it again to get a feel for the new shape of the story. You can make notes as you go if you want, about the larger things that need changing to have it make since in the new order.
Or maybe you want to make those changes to have it make sense, still quite roughly, and then do another read.
But either way, is it going to harm you or the story to have another read now? It's a few hours out of the many, many, many hours of work you'll be doing. So why not?