18 or 2 1 which is better?

1 and 2 1 have a larger distribution area, making tung oil clean and not scattered for half a year.

2, hand-woven better, the depth of the net bag determines the number of fish.

3. The area of the square 18 is small, so it is not easy to catch more fish, so it is better to use the square 2 1 manually.