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Sliding X revisited 28-Jan-2015 At 9:43:22 AM kieranl

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On 28/01/2015 gfdonc wrote:
>A sliding X will ensure both pieces are weighted equally regardless of
>which direction the load comes from. Sometimes it's hard to accurately
>predict this, and tying a cordalette locks you in to a particular arrangement.
>When/if I use a sliding X I tie off the lead rope as a backup anyway.
>I'll concede, where paranoia rules I tend to tie off the cordalette.
>YMMV.

No the sliding X does not ensure that both pieces are weighted equally - it ensures that both pieces are kept in tension. The force on each piece will be equal only when the ttie-in point is centred between the two anchors. If that point shifts more force will be applied to the leg which has just been shortened somewhat. It's basic rigging physics, change the angle, change the forces (a diagram would explain this better).

Also, if there is a shock load off the anticipated line of force, the transition to the new orientation isn't instantaneous, momentarily one side of the anchor will take a hit until the krab moves to the new alignment.

* edited for (hopefully) clariity