OK.....I've been meaning to do this before now. Here are some pics of how you can simply add some strength to those shelters.........keep in mind that you gain lots of strength with X bracing of any kind. Pay close attention to where the cables are attached....and also that a clamp has to be put in the middle of the X for this to be of gain here. I think that we used 1/4 inch cable here....and should have used at least 2 cable clamps on each cable connection, or the backlash if you will. I will try tho check back in on this thread to see if I can help answer any questions.