Got a good first run last weekend for keeping my desk full of my maps while I'm in the country. Almost 100 miles of gravel road, some of it pretty bad. Everything stayed in place with no problems. The tablet does shake a bit at the end, but that's because you're sort of trying to hold a few pounds on a long stick - that'll do. I used a piece of rubber band to secure it to my 4WD derailleur a bit and it really reduced the wobble. I attached it to the passenger seat bolt on a 1st generation Tacoma. It went without any problems. I can take it out when I don't use it, so it's very inconspicuous. Used it on one of their mounts and he did a great job. The tablet never fell out. No vice is required for adjustment. I had to bend it a bit to get it in the best position and I was able to do it by hand. You have to make a little effort, but it's not that difficult. It worked great.
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