I noticed the same thing today!I have a spool of the same fireline as you and just switched back from 10 mono.I released a 10lb buck with scales missing that I am sure was from the spectra line.It gets frayed a little bit and takes some scales with it when they roll up in it.I felt bad because ut was a beautifull buck.I am not going to use it on the smaller water next year but I will continue to use it on big water for the bigger nates.I think the quicker release times out ways the scale loss.