Randa thank you. Today I made a compromise decision .....I happen to have 80 autumn strips from previous swaps, so cut them in half at 20-21" to make two of these quilts, one to keep and another for my daughter. I think that will mix them up enough.
But instead of cutting the first strip in half per the original instructions, I added an extra fabric cut in half (measuring 10"-11" in this case) to stagger/offset them.
By having 80 strips to sew, I figure the sewing of the strips into the loooooong first piece will take up an additional 20" in seams (40 x 1/2"), so that is why I didn't do the 20" cut....I will need that length for it to come out big enough.
Clear as mud? I will keep doing some math before starting to sew. What is your plan?
:D