I never had any issue with the buttonhook as it's very solid, sliding into a tube welded to the faceplate of the center compression hub. Somehow looked better to me than the 4 struts as well. Also with the low f:d ratio it's fairly short.
Who knows, maybe one day they will make solar panels light enough to use for dishes again. They do have them, but everything is so heavy, and they cost too much.I never had any issue with the buttonhook as it's very solid, sliding into a tube welded to the faceplate of the center compression hub. Somehow looked better to me than the 4 struts as well. Also with the low f:d ratio it's fairly short.