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  1. #8
    Senior Member Navegante's Avatar
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    There's the inside the mast abrasion/friction to consider

  2. #9
    I've seen some gushing remarks on Facebook pages – mostly from people who simply watched the video and accepted what they were being shown.



    If someone has actually used one of these then let us know what you found in practice, compared to a conventional system.
    Now back in the UK.

  3. #10
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    Jan 2008
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    Another solving of a problem that doesn't really exist...
    And, I,d guess, as unit ages, gets sand etc on surfaces, the internal friction between the sliding tubes, especially approaching max dh, will greatly increase the force required on ropes...( as dh force increases the internal force on rubbing surfaces front and back of extension increase, and hence friction. In a conventional extension the problem does not arise)

  4. #11
    Senior Member Navegante's Avatar
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    How much extension is left inside the mast at full extension?
    It does not look like there is much left inside

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