#1
Hey guys, I was wondering if anyone is experiencing the same problem I am with my guitar:
When I tune up my g string, the pitch just makes a jump and gets super sharp. Does anyone know if this is a problem with my intonation? or my nut slot? or maybe its a conflict with my tuning machine?

Thanks guys
#2
It could be a problem with the nut.
If the g string is snagging or not moving smoothly through the nut it will build up tension and eventually "jump" as you put it.
If you scrape a bit of graphite off a pencil with a blade and use it to lubricate the slot in the nut it might help. (Take off the string first)
Otherwise it could be your machine head that's faulty.
#3
Sounds like it's just sticking in the nut. And by take the string off, don't waste the string of there's nothing wrong with it, just loosen it.

Does it make a ping noise when it jumps?