I never use a metronome, even tho my tab books say 112bpm and things like that i dont pay attension to it. Because i know the songs so well my timing is perfect. I tested myself, November Rain by guns n Roses is 8mins 53secs, i thought of it and played it through in my head and got 2 secs out, thats pretty good huh!
So why to people use metronomes?