Pole spears vs. slings: each has an advantage over the other. I prefer pole spears, my partner prefers slings. But, as in many activities, success is less about the gear
and more about the operator. She gets more water
time than me, so she swims better, can hold her breath longer, and sees fish better than I do. Therefore, she is a better spearfisher than I am.
One other tip: once you have a fish on your spear, get the fish out of the water ASAP. A struggling, bleeding fish is like a dinner bell to the men
in gray suits.