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Back mounted vest and GPI Pro Arm


Igor Savatovic

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In GPI Pro manual for titan Arm is suggested not to use PRO arm with Back mounted vest. 

"Orientation of the socket block adapter assembly is critical in that, the Arm should never be mounted in such a way that the weight is applied parallel to the axis. This incorrect axis orientation is always present when using back mounted vests."

And on the other hand, most of WK vest owners have PRO arm. Did anyone had any issues or a "catastrophic failure" with this combination?

Cheers

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I've seen posts in the past of people having the spherical rod ends fail on their pro arm from this setup (the rod end develops a stress fracture and cracks), but it seems like a pretty rare occurrence.

I ran my arm for about two years this way and never had any problems and I know people who have been doing it longer and it's been fine. I did finally buy a rigid socket block adapter for peace of mind though. I guess the idea is, you can run the arm and vest together knowing that it might fail one day, or get the rigid socket block adapter and know that if anything fails it very likely won't be the mount.

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My Titanium socket block split in two at the thinnest surface and I believe starting at the little hole where the spring end fits after years of use with a my WK vest. It was actually a very light camera package (Alexa Mini) on my PRO sled. Replaced it with a steel block and never had a problem since.

IMG_1224.jpg

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