so i answered your original question, then you insult me.   
  
i dont claim (nor am I) to be a good ice or alpine climber.  I certainly don't have the skill or experience of Don Serl, but I do have first hand experience with leashes, tethers, and leashless, and I am expressing my experience.  I reckon it is far more helpful than your (builderbob) insults and misinformation.