If my shed rod is slipping and sliding about a lot when the shed is open, I secure it by tying it to a second stick in a second cross behind it.
Many weavers provide for a second cross as they wind their warp. All the Guatemalan weavers I saw do so. However I have not seen anyone here in Bolivia use one. I put the second cross in once the warp is on the loom as I believe the fewer the twists and turns on the warping board, the better able you are to wind a warp with consistent tension.
Here is how I install the second cross. You will need one extra thin dowel for this:
Here is my warp set up with my string heddles made and a shed rod in place. First I open the shed rod shed, draw the warps down to the weaving line and place my sword within the shed to save it as you can see above.
Now that the shed rod shed has been saved on the sword, I can remove the shed rod.
Now I open the heddle shed and place the extra thin dowel within the shed behind the heddles as shown.
I use the sword to reopen the shed rod shed up beyond the heddles and put the original shed rod shed within.
Join the two sticks with tape, string or elastic bands. You can see the second cross that has been formed. Your shed rod will now stay put and you can open that shed by inserting your sword in front of the rod and tilting it.
Here is a video I also made to show the process of securing the shed stick…..