And it will make a bigger quilt. I did two sizes of a Surf Song bargello. I made each strip 2 inches rather than 1 1/2 the pattern called for on the second quilt. Both quilts look good, but I really liked the one better where I followed the pattern exactly. There is a difference in the patterns of the two, though it isn't a large difference. Let me see if I can find pictures, if that helps.
Let me repeat, both look good. But it may help you decide. I know it is a different pattern.... The first picture is with the width the pattern called for. The second is i/2 inch larger for each strip.
Maybe it will help...
Dina