Many divers want to get into spearfishing perhaps quicker than they should. Spearing requires complete mastery of the diving basics, great working knowledge of fish identification and mental discipline to know when and even more importantly when not to take a shot. There are currently very few underwater hunting programs taught by the large certification agencies. Without this familiar benchmark of training and knowledge available we feel that a diver should have the following before trying on a true spearfishing charter;
Spearing on harbottom sites is frequently disorienting and underwater navigation skills as well as comfort performing free ascents and descents is a must.
The idea on a spearing charter is to cover as much ground as possible, not to burn a whole tank per dive. As a result spearos often make 4 or more drops in 100' on these charters. This is simply not safely possible on air tables without hitting deco.
This is the depths most of the reefs. Gas is consumed quicker at depth and some people begin to experience narcosis here. Experience diving and task loading at these depths is important to your abiliy to function as an underwater hunter.

Being able to find your knife, light, stringer, power inflator, air dumps or liftbag bag by muscle memory is crucial. When you have a green fish on your shaft you need to be able to control the situation as quickly as possible and dispatch the fish. Fumbling for gear costs split seconds that often make the difference between a tear off and a strung fish. Burning your whole dive to chase down a wounded fish is not efficient!