This Sigma came in to have a setup to achieve a low action. Once I’d strung it up I found there were dead frets from around the 10th fret upwards on the high E. A fret level was in order and showed up massive high and low spots which were causing the issue.
The truss rod was pretty much as tight as it would go with the strings at tension and getting the correct amount of relief was tricky.
Setup with D’Addario Phosphor Bronze 11 – 52.