No there is not difference in the stitches of a Baseball and softball. The softball is just larger, but the stitches are the same.
I believe you are referring to a "herringbone stitch." Here is a video link showing how to make a herringbone stitch: http://www.wonderhowto.com/how-to-herringbone-stitch-191551/
satin lazy daisy couching herringbone running whipped stitch stem stitch french stitch wheat stitch back stitch
Any embroidery stitches are decorative. Most modern sewing machines have several built-in decorative stiches, including the feather stitch, cross stitch, entredeau, and scallop. In hand sewing, just a few of countless decorative stitches are the chain, French knot, vine, and satin stitches.
stitch
one is yellow and the other is pink
it's called a baseball stitch.
Straight stitch is just a regular stich going in and back out; although, a Lock stitch is similar to straight but the thread comes back around goes through itself to almost form a knot.
Assisi embroidery is a form of counted thread work. It is characterised by a background filled with embroidery stitches and the main motifs left as voids (see negative design), without stitching. The background stitches include cross stitch, herringbone stitch and long and short cross stitch. The main motifs are often outlined with stem stitch.
With the satin towel you are will get a better quality after many washes and cleanings. And with satin you will avoid getting fading.
The 530-2 had additional embroidery designs and most importantly it added the blind stitch which the 530 did not have.
When crocheting you can increase by making two stitches in the same stitch. You can also make a stitch between two stitches.
Intercostal refers to the spaces between ribs. A stitch is where a build up of lactic acid and lack of oxygen causes a muscle to spasm and cause a lot of pain and usually occurs during exercise. So an intercostal stitch is likely a stitch in the ribs.