It is possible to set according to the situation of every target and field.
If you attach the split ring to your favorite position, you can use it both inward and outward. Select a length that prevents the front and rear hooks from interfering with the jig attached to the front and back.
If you have a lot of bite with a raised jerk, lengthen the front, and in places with a lot of roots, lengthen the rear to reduce roots.
Please judge various situations and find the best setting for Twin Spark.