My ledge game ain't nothing to write home about, but back 5-0 is one I know how to do somewhat well. I pretty much just ollie on and pretend I'm about to do a manual on a manual pad, lock my back truck on and they just work. I used to be able to balance them no problem but these days I get lazy and usually just scrape the tail all the way through.
Front 5-0 on the other hand is one I've always had trouble with. The pretend to manual thing doesn't work for me on them. For some reason I always lean outwards too much on them and lose them right when I get on. I pretty much have to lock in completely perfect and lean on them just right to even grind one and maybe land it, otherwise I just lean out too much and lose them the second I get on the curb or ledge.