why did minho insist the runners go out in the maze in chapters 43

Teresa wonders if it is a coincidence. So they race to complete the pages. Other letters appear. The words FLOAT and CATCH are spelled out. Minho insists that he and Thomas head out into the Maze. Thomas argues. The code is far more important. Minho feels that this may be the most important day to be in the Maze. He thinks they should spend a night out there. This intrigues Thomas. Newt agrees. Other Gladers can be brought in to figure out the map code.