guides/user/RPC-server.md

@@ -54,6 +54,10 @@ the [dispatch](http://rubydoc.info/github/Arachni/arachni/Arachni/RPC/Server/Dis
 This is completely transparent to the client and allows you to easily scale up
 your operation by simply adding more Dispatchers to the Grid as necessary.
 
+To (un)favor certain Dispatchers you can use the `--weight` option, the given float will
+be multiplied against the load-balancing score of a Dispatcher and that product will serve
+as the new score -- lower is better.
+
 ##### <a id="setup-grid-load-balancing-example" href="#setup-grid-load-balancing-example">Example</a>
 
 Starting the first Dispatcher: