[ramonesfreak]

45-55 RH is right. With electrics I’ve never had an issue with humidity except fret sprout on a few guitars. This is a real crappy problem to have but, with the right set of files is a doable fix. I prefer avoiding this so I do check all my guitars frets every few days. All my guitars have always for almost 40 years been on stands 100% of the time, including acoustics. I have multiple RH gauges in any room where there is a guitar and check daily.