I miss read a bit when replying in the other comment, for 4 side-by-side 80 column windows, you'd need to bring the font size to 9, which isn't as comfortable a

I miss read a bit when replying in the other comment, for 4 side-by-side 80 column windows, you'd need to bring the font size to 9, which isn't as comfortable as 14 for me in my side-by-side setup, but then 1.25x is also an option.