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  1. Waldo

    History, ANSI and spike climbing

    In the current a300 pruning standards it states that climbing spurs shall not be used for climbing trees. Except in situations where other means are impractical: •Remote/rural utility rights-of-way •Branches are further than a throwline distance apart, and there are not other means of climbing...
  2. Waldo

    PNW ISA, if you don’t know what’s going on…

    All I know is that it is weird. I know Evan and Charles to be straight shooters as well. Currently there is an open letter from many of the past PNW ISA presidents in support of calling a special meeting of the membership, if you guys any any issues with how it was handled and are current...
  3. Waldo

    Plastic Hook for Chipper Winch

    I actually really like my Chook, very simple to use. Splice or tie a longish loop, and feed it through the closed eye at the bottom then around the load, and slip the loop over the two hooks.
  4. Waldo

    Trees from a distance

    Robinia got it! Sorry for being gone guys, I had an opportunity I couldn't pass up. I got to climb up in Sequoia Crest park.
  5. Waldo

    Trees from a distance

    not irish oak.
  6. Waldo

    Trees from a distance

    not robur
  7. Waldo

    Electric hand pruner recommendations

    We do a lot of ornamental pruning and fruit tree pruning, so they paid for themselves fairly quickly. Rather than having to switch between my hand pruners and handsaw for 80% of my cuts i can just zip them off with the felcotronics. Next time you are in Portland, look me up, i'd be happy to let...
  8. Waldo

    Electric hand pruner recommendations

    They are safer to use than handsaws....
  9. Waldo

    Electric hand pruner recommendations

    These are the ones I use: https://felco.com/en_us/produits/powertools/felco-822 They are the best investment we have ever made. Really speeds up ornamental pruning, you can make up to 1.5" diameter cuts with them no problem. It is insane to me that more people aren't using them. I have 5 sets...
  10. Waldo

    Trees from a distance

    neigh. think European.
  11. Waldo

    Trees from a distance

    sorry for the delay... no to all. Not a cultivar, true to form. you guys are correct with the genus.
  12. Waldo

    Trees from a distance

    No to both.
  13. Waldo

    New rope slips through my Zigzag unpredictably.

    Inspect your zig zag, it could be a part of the recent recall. This recall does specifically address zags that are slipping. https://www.petzl.com/INT/en/Professional/recalls/2013-4-25/Product-Recall--ZIGZAG-Petzl-mechanical-Prusik-for-arborists-(Sku--D22)
  14. Waldo

    Trees from a distance

    Here is one my dad planted in front of our shop.
  15. Waldo

    Trees from a distance

    Yeah, i've been lurking for a while, seems like i'm not in front of my computer as much anymore.
  16. Waldo

    Trees from a distance

    Up in Bellevue those trees get huge!
  17. Waldo

    Trees from a distance

    Madrone. Arbutus menzesii
  18. Waldo

    Petzl control splice

    Petzl does not post splicing instructions for their splice. Their splice is very weird, and does not follow the usual patterns for double braid splices. As such, they de-rate their splice down to 15kN because they remove the core from the eye section of the splice. The logic behind the splice...
  19. Waldo

    Petzl flow splice

    The logic behind the splice is that is the strength reduction of a well tied knot. Also, in most double rope scenarios the splice is taking only a half load. Many of our prusiks are not rated to that 23kN standard in a straight pull, the manufacturer relies on us using them in a basket...
  20. Waldo

    I'm stumped...

    I would call that a red maple for sure. maybe a super weird/ not well know cultivar or cross. I really like those leaves, though.

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