I use the line counter for surf fishing and sea fishing. The string holds good and the device is one with no dropouts. However, my thinnest string is a 28er mono. I can not say a thinner cord runs well. I can not say anything because it does not depend on my my feet on the accuracy of the measurement. I am dissatisfied with the reset button. I always had to press several times to set the counter back to zero after a short time. This is annoying and not the intention. Therefore, for me two star deduction.