Dropouts

EDIT
After some time I realized that the misfire resulting from the writing stem. Pressing the mine too hard on the paper, then after some time it comes to dropouts. When given up the writes the mine perfectly,

Basically, the mines write very well, I only have the problem that they regularly suspend for a few millimeters and the annoying huge. The misfire occurred shortly after the first use regularly at both mines.
The second star there just for the otherwise good writing feel.