Learn to Bounce Dive for spearfishing

[VooDooGasMan]

Ill have to agree, wimp bouncy divers is where you start, and your goal in manly bounce dives, and only the elite become gentleman bouncer dives, later you will understand these three rolls of a bounce diver. and the levels that you will go through are very rewarding, spearfishing is probably the most recognize bounce diving there is, next to wreck bounce diving.

 

[VooDooGasMan]

West florida dive club has the terminology of a Bounce Dive is a descent to maximum depth and then an ascent to the surface with the least delay, in a dive profile resembling a spike, as a pair or sometimes as threesome of divers that dive together as a team for safety.

There are many ways to look at bounce diving, and spearfishing clubs have there ways of bounce diving.

 

[Thalassamania]

For that sort of short bottom time in less than 100 feet of water taking a tank along seems like a waste of energy.

 

[VooDooGasMan]

Well yes and no, there is extreme current, here is a pic of the bottom, and this was awhile ago of close to the pic, I went for scallops, the cabezon was a bonus.

I just use a soft bottom zodiac with a 25 horse right now and only use land sights, When i hit bottom I missed my 180' target which is the second pic earlier this year where the scallops are abundant. after a minute of flying the bottom and only a half dozen scallops, seen a cabezon, planted my gun in bottom and looked to be busy collecting made my way closer with hand over knee to where I could get in range for a shot when I flew by. Slightly gave a view and the boy was still there, I lifted with knee, the current took me on my way, i looked to the right and had speargun pointed to the left with a slight glance I had it and shot, took off to the surface and pulled the fella close to me, grabbed the shaft and put him on my stringer on my safety stop.

Actually a bounce dive to this depth in a short amount of time is a skill that is only accomplished through experience.

 

[VooDooGasMan]

This mornings dive was same area, and same tide profile, I could hit this twice a day for the past few days, now it is dark to hit it later on.

It is very Important to know what the water does through the tides, as your bounce can send you to the surface quicker than you should go. Therefore this is why orientation dives are a necessity and planned for the perfect time to bounce dive and hit your target and ascend safely.

I retrieved My 10#s of scallops and the ladies on the water front made a scallop kiesh and baked oysters, and a Irish coffee.

The water is nice now, sun is calling me out to go catch some coho for lunch, trolling with coho killer and silver flasher, at 85'.

 

[VooDooGasMan]

Did not get a bite till a little rainstorm came in and Oh my garsh, one coho after another.

While my thoughts have gathered on deep bounce diving, the diver should have done some deep air diving, and also decompression diving experience, not saying it is the only way, just it helps to have the insight of doing the dive easily. Know how to read the navy table is more than likely the best way, and the new navy tables are more forgiving, so I would use the old ones.

A post on my other thread was in the consideration that a computer can not accurately run deco on a bounce dive. Computers have different profiles from one another. I myself have never had a problem with my computers and followed the deco.

Every one is different and like all diving aspects, always caution of the safe side.

 

[Thalassamania]

If you look at the AAUS Dive Computer Workshop you'll see a paper by Edmonds that proves that if you make a series of bounce dives, that are permitted by a computer, it is still quite possible to get bend. This was demonstrated with actual chamber dives on human subjects, as I recall.

 

[VooDooGasMan]

http://faculty.washington.edu/ekay/Dive_Briefing_Final_4.pdf

This is a good and clear DCI by Edmond Kay, a great diving and Hyperbaric doctor.

 

[Thalassamania]

What was you point? I may have missed it, but I did not see where Kay addressed repeated bounce diving, so I return you to read Edmonds' paper. You can find it RUBICON.

 

[VooDooGasMan]

Slide 5 explains that there is no real way you can be sure to avoid DCS.

Bounce Diving is no more dangerous than just diving your tables and or a computer, to many variables to consider in the humane body and what the humane has done up until the dive.