I was playing a gig on one of the small stages at Glastonbury, during the second number I noticed that something felt wrong..
I was playing my acoustic fretless with black nylon strings (Picato), the nylon covering had come loose on my A string and was moving up and down the string under my finger, the tone of that string also went fuzzy and week. At the end of that number I took a look and made an attempt to remove the covering...silly idea, there must be about 100 yards of black tape wrapped around that thing. I then made a second mistake of trying to break the tape...
it cut my LH index finger!!! Nothing serious but rather anoying.
I think that the problem was caused by the fact that those were the strings that I used when I set the bass up, I had make a saddle ivory and nut, it was also my first fretless set up and I must have had those strings on and off about 50 times. The repeated up to tension, down again must have done some harm, also I suspect that high temperature also played a part.
In the end I pulled the tape tight and tucked the loose end under the bridge and played on. I had a spare set and replaced the string for my next gig. I'm keeping the old set for future set ups, I'll then put on a new set once I'm happy with it.