Posts by Don Paul

  • BW speargun

    Quote from LunkerBuster

    does this includes those "too much vodka" nights <img src= " height="23" srcset="https://spearfishing.world/forum/images/smilies/emojione/1f606@2x.png 2x">


    I'm French Canadian and Irish..... Too much Zubrowka...Right <img src= " class="smiley" srcset="https://spearfishing.world/forum/images/smilies/emojione/1f606@2x.png 2x" height="23" width="23" loading="eager" data-tooltip="biggrin" aria-label="biggrin">


    I rest my case.^^^^
    Don

  • BW speargun

    Quote from monster slayer

    I am saving to get an open water speargun. I want a 25-30 feet reacher 68" 72" . What would you recommend?


    John Warren custom


    Wood Man


    Griswold or the Tin man.


    Phil Herranen


    or try to buy my Double Trouble from my kid when I start drooling on my chest.^^;)
    Cheers, Don

  • Soccer

    Go Celtics ..... ooooo wrong thread.;) Irish power ... good beer... and great fights...to go with the fine live music.


    Cheers, Don

  • homemade polespear

    Quote from LunkerBuster

    nice Don, a "tube" gun <img src= " height="23" srcset="https://spearfishing.world/forum/images/smilies/emojione/1f606@2x.png 2x">



    You can build a model with a plastic architects scale, a stiff plastic straw, a rubber band and a bath tub full
    of water. You will be surprised how fast and hard the straw projectile hits the far tub wall.^^
    Than you can find a raw potato and drive the straw completely through with enough speed.
    There is a guy in Canada that has a large pvc throwing tube gun too, with out ever seeing mine.
    Now back to the pole spear.;)
    Cheers, Don

  • homemade polespear

    Quote from mrmike

    yes the wall thickness is 1/8". the tube will be cross drilled and the 1/2" solid rod will be plug welded in place as well as the ends of the tube. only tig welding because we dont have a mig gun.


    ''Only Tig'' I'll take a artist with a TIG torch over Shotgun any day.;)
    Cheers, Don


    PS...If you want to have some fun. Do a 1'' 6061 t6 thin wall tube with a 1/2'' band and no tip.
    Hunt shallow and go for head shots, the throw wt of the hollow tube will shock fish in the 5lb range.
    Just pick them up and string them before they wake up. No need to rip big holes in pan sized fish.
    Yes I have done it and also have a gun that shoots 1/2'' 17/4 hollow shafts with a flush mounted flopper
    I'll dig out of the attic this fall for a story later this year.
    Cheers, Don

  • Soccer

    Italy is too old. Quote: Rolo


    Just like me ....^^ but with young girls cheering us on we can pull out some tricks to entertain them.;)


    Cheers, Don

  • What it do?

    Welcome Frank, I like to hunt with a polespear from the beach for pan sized fish. I love staying close to my roots. Tell those San Diego freedivers we have a cool forum here and Dan has given us a wide open California Section ready to be stocked with fish, stories and reports on the freediving sport we love.
    All the best, Don Paul

  • Hello from South GA

    Welcome mate, I have found this to be a great forum with warmhearted divers that like me spearfish on breath hold. Have you ever dove around Jekyll Island I use to snorkel there when I was a wee kid.
    Cheers, Don

  • Risks of packing

    Glossopharyngeal insufflation causes lung injury in trained breath-hold divers.


    Chung SC, Seccombe LM, Jenkins CR, Frater CJ, Ridley LJ, Peters MJ.


    Department of Thoracic Medicine, Concord Repatriation General Hospital, Concord, Sydney, New South Wales, Australia.
    Abstract


    ABSTRACT Background and objective: Glossopharyngeal insufflation (GI) is a technique practised by competitive breath-hold divers to enhance their performance. Using the oropharyngeal musculature, air is pumped into the lungs to increase the lung volume above physiological TLC. Experienced breath-hold divers can increase their lung volumes by up to 3 L. Although the potential for lung injury is evident, there is limited information available. The aim of this study was to examine whether there is any evidence of lung injury following GI, independent of diving. Methods: Six male, competitive breath-hold divers were studied. CT of the thorax was performed during breath-holding at supramaximal lung volumes following GI (CT(GI)), and subsequently at baseline TLC (CT(TLC)). CT scans were performed a minimum of 3 days apart. Images were analysed for evidence of pneumomediastinum or pneumothorax by investigators who were blinded to the procedure. Results: None of the subjects showed symptoms or signs of pneumomediastinum. However, in five of six subjects a pneumomediastinum was detected during the CT(GI). In three subjects a pneumomediastinum was detected on the CT(GI), but had resolved by the time of the CT(TLC). In two subjects a pneumomediastinum was seen on both the CT(GI) and the CT(TLC), and these were larger on the day that a maximal GI manoeuvre had been performed. The single subject, in whom a pneumomediastinum was not detected, was demonstrated separately to not be proficient at GI. Conclusions: Barotrauma was observed in breath-hold divers who increased their lung volumes by GI. The long-term effects of this barotrauma are uncertain and longitudinal studies are required to assess cumulative lung damage.


    Well, in short, in five out of six divers, pneumomediastinum (which means that air is present in the mediastinum, which is the central compartment of the thoracic cavity) was observed. My interpretation is that a possible cause of the pneumomediastinum could be that there was an alveolar rupture caused by the GI/packing, allowing air to escape into the mediastinum. Rupture in some other part(s) of the airways besides the alveoli is also a possibility.


    The authors of the study writes: "The single subject, in whom a pneumomediastinum was not detected, was demonstrated separately to not be proficient at GI". It could mean that this diver was unable to pack his/her lungs to such an extent that alveolar rupture occurred. This would be in accordance with what is known about lung volumes, airway pressures, and risks for pulmonary barotrauma/volutrauma.


    Furthermore, the authors state "The long-term effects of this barotrauma are uncertain and longitudinal studies are required to assess cumulative lung damage". This means that even though the divers did not experience any acute symptoms, it can not be excluded that there could be long-term damage to the lungs from e.g. repetitive pneumomedistinum. Overinflation of the lungs by GI above the TLC is a relatively new practice (at least within a larger population), and therefore not much is known about the long-term risks with this practice.


    I pulled this from the web, not my words.
    Don Paul

  • Line setup question, see photo.

    Don Paul have you seen this before? in your experience what is the purpose, thanks all.


    I have never seen any thing like that, I agree with Fuzz, I think it is jury rigged to get by with something that does not fit.
    Cheers, Don