Helps partly ...

I bought the marten shock because I cat or / and raccoon tracks on the car have a day, including regular "presents". Since the Marder Schreck installed (about 8 weeks) the tracks have become much less, but not completely disappeared. On the car roof the critters climb no longer (not once, before a day), but the hood still seems to be comfortable enough now and then his business to do there - weird, because just there but the Marder Schreck would have to be the loudest.

Not fully convinced me of Marder Schreck therefore, as measured by the price, the performance is OK.