Layout/Grid System://

Testing a range of different grid specifications for the spread layouts. Wasn't entirely sure whether to have an even or odd number odd number of columns to start with; each had their own benefits but just wanted to identify which would be most suitable for my publications. I have experimented with 4,5,8 and 9 column grids with a range of different row guides. I intend to transfer these digitally for a more accurate representation and to see how many words I'll be looking to fit on each spread.