I had my Ruger Super Blackhawk Bisley nitride treated by WMD Guns. They call it Nitromet (Melonite). I was carrying it regularly, particularly on days when I go the range. It was developing a few tiny spots of corrosion on the backstrap due to my sweat. If it stands up to my sweat as well as my Glocks, then the corrosion issue is a permanent fix. Top photo is before the treatment.