I appreciate your videos. I wonder if you can put the links you mention on your blog as well. I usually come to your video via your newsletter to your blog, and then I have to go to youtube for the links.
If you buy one, pay attention to what its made of. The ones made of hardened steel weigh a bit and are fine for throwing in your vehicle. If you are trying to keep weight down for a backpack, etc. look for aluminum. Train hopper knowledge.
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