Which of the following should be avoided when storing nets?

When it comes to storing nets, folding them can create stress points and creases that may weaken the material over time. Folding can lead to permanent distortion or damage that might affect the net's performance or integrity when it’s next used. Storing nets in a manner that avoids creasing helps maintain their functional characteristics, ensuring durability and proper operation during future use.

In contrast, hanging, drying, and stacking are methods that can be effective for maintaining the shape and condition of nets. Hanging allows the net to retain its shape without the risk of creasing. Drying is essential for preventing mold or mildew, especially if the nets have been used in wet conditions. Stacking can be acceptable, provided it is done in a way that does not compress or damage the fibers of the net. Therefore, folding is the practice to avoid when storing nets to ensure they remain in optimal condition.