I am about to make about 20 strings for my bows, & I have a question. What is the general concensus on using PTFE tape (as used by plumbers etc.)for the end loops of a string? I have a friend who uses it on a regular basis, & will not use anything else, I have often wandered if there is an advantage with this method, as the loops feel softer, or is it a cost cutting exercise? Any input would be appreciated.