I have a fanned 8 string guitar with ss frets, the freta are polished and they are perfect, but after playing one our with fresh string I noticed that I can t do bends with the F# and with the B string ( they are ghs 10-80 ) becouse the big wound string loose the nikel wound really fast ... and when do bendings i feel a strong grip ... I don t know what to do .... any suggestion are welcome