I figured it out. By default (i.e. no "width" or "width = 1.0") there are three "slots" per line. Setting "width = 1.5" will change that to two "slots" per line and setting "width = .75" will allow four "slots" per line. Using 'width="full"' uses the whole line.
My problem was using 'width = "1.5"' which made type(width) a string and not a number!
