After I have label every block and take a photo, I stack column 1 and column 2.. Block 1, then under that column 1 and 2, block 2, all the way down the whole length. Then I chain stitch, taking a back stitch at the top
and bottom of each set. When done all blocks 1 and 2s are done and chained. Then I stack all column 3 and add to my first chained bunch. I continue this way and end up with a chained top. Helps me know which way to press seams and is easier to match the rows now. I think I may have learned this on the QB, and it has really helped my accuracy.
Hope it makes sense!