We have them around here (in do it yourself shops ...)
They are a pain. I got one with the lowest security rating (they had in the shop)
5 pin , all but the middle pin where serrated (1 line) and all the drivers where spools. As if that wasn't enough it has a terrible keyway.
Haven't been able to pick it with more than 2 pins

(not that i'm any good but i do get my front door open thats a normal 5 pin w a better keyway

)
I realy should replace my front door lock
some pics from the abus site
If you look at the middle groove on the key, on my key the first pin comes to the center of that groove
