I use sqs to make 8 hst at a time. 6 in sqs for 2 1/2 -- 8 in for 3 1/2. Just add 2 in for each size up. Draw an x and sew 1 /4 in on each side of lines. Cut in half both ways then on lines.
Then I use Quilt In A Days triangle sq up ruler for one cut sq up. Fast and perfect every time.