For deviations (and Y hangs) you don't really want the ropes angled at more than 60 degrees to the vertical (so 120 degrees between them), as that angle means 100% of the load on each component, there's a graph on this page showing how Y hang load increases more rapidly as angle goes beyond that:
www.ropebook.com
However, the angular vector forces curve for deviations is almost as if the two axes on the graph have been switched & it maxs out at 200% (see previous ropebook link), so it's not as much of an issue as for a Y. I think there's a roof deviation in Lost John's that must be more than 60 degrees?
![www.ropebook.com](https://www.ropebook.com/wp-content/uploads/2019/07/vector-chart.jpg)
Vector Forces - ropebook
Vector forces become apparent whenever there is an internal angle greater than 0° between two or more rigging components or anchorage points. For ease of…
![www.ropebook.com](https://www.ropebook.com/wp-content/uploads/2019/07/rb-initials-logo-trans-100x100.png)
However, the angular vector forces curve for deviations is almost as if the two axes on the graph have been switched & it maxs out at 200% (see previous ropebook link), so it's not as much of an issue as for a Y. I think there's a roof deviation in Lost John's that must be more than 60 degrees?