The leaves have a usable saw length of about 10cm. In this area, they cut like poison. The toothing is rather coarse, ie to be reckoned with a bit of avulsion, but the cut is absolutely smooth - sign of correct processing.
Compared to the S511 DF see these blades of such professionals against amateurs. They are harder, so swing less, and bend anyway, if necessary. The S511-teeth are small, but do not cut a smoother less avulsion.
Other competitors (Ruko) immediately fell out: they were indeed much longer, but could not keep up with the nearly Schittleistung.
NOTE: The plastic coating does not last very long; including bare metal comes to light. You have to lubricate a used sheet so if necessary, so that it does not rust in storage. That was for me but not a reason to be penalized.