Greetings, I have seen few vids (of errant flight patterns, some resulting in crashes) where the string tot he prop guards broke. it is hard to tell from the vids whether this was the definitive cause of the mis-flight, or whether it had nothing to do with it. I have also seen a vid or two where the strings prevented some crashes and in one case an injury. It seems with the not so positive method of simply tying off the string and then merely stretching it over the "barbs" on the bottom of the guards there is cause for it to come free from one of the barbs thus loosening the rest. So, do I continue status quo with the string, remove the string or perhaps mod the string a bit. As far as mods go I was thinking of a couple of methods. 1. In addition to the normal stringing, maybe wrap one turn around the center strut of each guard. 2. Attach a very light spring or rubber band to one end and thus keep a slight tension on the string the whole time. 3. use a zip tie circling the string and the center strut on each prop guard. 4. Filing a deeper "notch" in the barbs for a more positive grip. Anyone? Tnx.