For people who used the 4x4 grid method on the DAT, when did you go about drawing the grids? When I was going through CDP, i found this method very useful for the more difficult (multihole/ 1/2 holes etc) problems and bulletproof for easy to med difficulty. Drawing out 15 grids is time consuming. I understand that there are no breaks between Survey Science and PAT. Is the whiteboard dbl sided? If that is the case I'm thinking about drawing the grids during the SNS tutorial. How useful of a strategy is that?