Please note, Warmoth does not perform fret leveling. Most Warmoth necks are playable as they are received and do not require fret leveling. However, because wood moves with changes in temperature, humidity and string tension fret leveling may be required. This is best done after the neck has been strung up to pitch for several days and allowed to adjust in the assembled state. For this reason, Warmoth leaves this fine tuning to the end user.
While stainless steel and gold fretwire are harder material than nickel/silver, the same fret leveling/dress techniques can still be used. They take longer to dress, but these harder frets will last much longer than comparable sized nickel/silver frets.
On necks with Maple fretboards, where the finish covers the fretboard, the finish is sprayed directly over the frets. This finish will wear off quickly with use, or it can be scraped off quite easily. A fret leveling operation will also take it off.