I just finished a floral log cabin, and just cut all my strips 2 inches wide, sewed them on, and then cut the length. To keep from getting confused, I sewed the same strip on all 64 blocks in a sequence before adding the next "log." It's coming back from the quilters in about 2 weeks. I didn't look wavy to me, so hope it doesn't when it's quilted either. You guys have me worried now!! : )