I thought I had it just right this time, but that "thick and quick" yarn made it difficult to measure.
I cast on 45 stitches, joined in the round, and knit in seed stitch for a couple inches. Then, I continued in stockinette until it was about 9 inches long from the beginning. Then, I did the usual decreases, and closed the top.
I guess I should have started decreases at about 6 or 7 inches.