For years now I’ve noticed the rapid breakdown of microphone cords. The outer jackets just disintegrate. Anyone know why? Ones in storage I suspected mold as a factor. More importantly is there a way to prolong the life of the cords? Maybe rubber is changing since I notice I have to replace windshield wipers quite often as well. One more—- I found a 10yr old pair of rocky books new in the box that I had forgotten about that looked pristine but when I picked them up the soles disintegrated in my hands.