So my city has a bunch of concrete ledges but they all have a pretty big chamfer on the edge.
By chamfer I mean that the edge of the ledge is not a horizontal plane and then a vertical plane but a horizontal plane, then a 45 degree sloped plane and then the vertical plane.

I find them quite hard to skate.
If the chamfer is small enough there is not much problem when doing grinds. The truck touches the top of the ledge and the wheels (on your heels when going frontside or on your toes when going backside) touch the vertical plane of the ledge. Grinds get locked.
When the chamfer is big enough the wheels touch the sloped plane so it is very easy that they roll up the slope and you end up getting on top of the ledge or worse, eating shit.
Slides are also hard because you cant slide with the baseplate, you have to slide with your wheels. The chamfer is not big enough that the wheels make contact with the sloped plane doing a tailslide for example. I think that would be really hard to skate.
Any tips on how to skate these kind of ledges?