I’ve used pencil graphite on my bridges and fingerboard nuts for many years now. It truly does act as a lubricant allowing the strings to pass over the bridge and fingerboard nut with less abrasive friction tearing away at the bottom of the string as it passes.
I also try to remember to clean my strings off after each playing session, whether practice or performance.
This may sound a bit selfish, but I also try – in clever little covert ways – to minimize oily-fingered fiddler wannabees gaining access to my favorite fiddles. I’ve found over the years that oily fingers, their residue left uncleaned, will kill strings faster than Clark Kent can change clothes.
Am I the only one that was not aware of the “pencil”? 😳
Then again – “I” have never changed my strings. I always find someone else to do it for me. I just purchased some Pirazzi strings for my back-up fiddle; and mow must wait until I get back home to have them put on my fiddle. 🙁
I learned to change fiddle strings by watching a video…thank goodness for having my PhD in YouTube-aholic-ism…lol…it’s how I learn to do anything! I get nervous changing str8ngs, though…fiddles make me nervous … too much to go wrong!