I meant that the other things like caverndweller sure footing, and outcry of steel (I think it is) are said in helpfiles to be better than the footing edge.

So given the edge is a poor man's cousin to those other things, and given how effective maneuver is, I doubt the edge would do much more than just delay the inevitable.

If I were to guess what might help, enlarging might.

That said, maneuver is only useful in a few situations. I've used it in the mausoleum when attacked but I could have just batted the guy until he fled.

I've used it against the wrecking Ball conjurer kanaev to knock him out of the room before his servitors could engage me. Repeatedly. It wasn't that effective as he just kept trying again until it failed, but then neither was anything else I tried!

And you need to be lucky for someone to fall for you standing next to a lethal hazard, be it mob or deathtrap.