My music sheet reading skills sucks!!!
I can read sheet music but I´m very slow at it and I have a hard time getting the legnth of the notes correct unless I have heard the tune before.
I never practice those skills, I´m more into learning music by ear, tabs or even let someone teach me.
I belevie this is a limitation for me, But I heard that even Yngwie J Malmsteen never read/write sheets.