In my ongoing effort to cut tent weight we have replaced stakes, changed ground pads, and we're looking at replacing the guylines (no really, it's amazing how much cordage weighs!).
At what diameter is there a serious concern of the guyline damaging the tent by cutting through the attaching points? It seems like all tents have basically the same loop material for attaching, so I don't think this would vary much per tent.
For the purposes of this, assume I'm careful and don't mind dodging impossible-to-see guylines.