star. if i understand you correctly, you are making a lone star with 7 strips in your strip set, but you will still have 8 diamonds in the center, like the quilt in the picture below. if so (8 diamonds), you would cut the same angle from your strip set no matter how many strips it contains.
you can have as many strips as you want- as long as you have 8 sections to form your star. make sure everything is cut at the same angle. 