manni-yunk
Contributor
I found the Farallon Shark Dart reliable only if you can hit them in a limited area in the gut. I suppose it could work in other areas but getting adequate penetration is very difficult at the toothy end. The "needle" alone is often enough to make them look elsewhere though.
Power heads work anywhere you can get a solid hit. I have had occasion to use both while riding shotgun for friends spearfishing in Baja. With either device, getting out of the water is a good idea since their cannibalistic friends get excited pretty fast. Most of the time a little prodding or aggressive behavior alone works.
Using either is a pretty risky business. Both devices fail on a glancing blow and you dont need one at all unless the animal is exceptionally aggressive. Either is also useless in mediocre visibility since you can't react fast enough when you really needed to.
I am thinking about powerheads - but they see inherintly less safe.
I wasnt aware that the farralon dart was only effective with a gut shot.
Ive have seen sharks, large sharks, survive several direct shots with a shotgun slug and get very, very angry.
Understood about the vis - and usually we are extatic to get mediocre visibility. I would hate to be 100 feet deep with great vis and think "I wish I bought that dart (or powerhead)." Really this is about overplanning. But still.
I dont think its likely to really need or ever use one - but I would love to avoid the previous scenario.