bad reviews not comprehensible way

Standard Carbon brush with perfect function. The bracket is initially rather sluggish. This gives, however, the passage of time.
Who exerts on his plate so much pressure that the plate stops, the handling should reconsider or has a really weak engine at his turntables.

One should put the brush almost without pressure on the plate, and then pull outward. It's that easy and has proven itself over 30 years.
Who wants to clean deep into the groove, come on do not wash over. More pressure on the brush does not help because, regardless of which carbon brush.