We got in line at the turnstiles 730AM yesterday and with the rain delays it was around 6PM when we finally got on the ride. The TMs made sure to give everyone water in the broken lines every 20 mins or so. At queue 3 (Poseidon back lot) they started selling snacks to the lines and once you reach the front of Sindbads it was relatively easy to make your way out to grab some real food (Fire Eaters, Kebab shop, etc.). We just made sure to keep one person in line, and most of the people in front and back knew who we were after spending so much time together.
Only thing I would recommend is bring a poncho. We forgot ours in the car and ended up getting rained on 2 seperate times...first time was just a sprinkle, but that second rain we were soaked.
Still worth the wait, but it wouldve been a lot shorter wait if the rains weren't there.