Maybe he means "poor covering" on the electrodes. Perhaps he is experiencing problems with the concentricity of the covering around the electrode core.
He could be using a “translator” program to help him formulate his question.
Pour vs poor, it an easy mistake if English isn’t your primary language.
In this case, I believe the A5.X filler metal specifications might provide some useful information. The specification does provide guidance on the concentricity of the flux covering and the core wire.
Al