I have a very steeply sloped sound barrier berm to mow for one of my commercial clients. Way too steep for my Hustler Super Z. Would a wide walk behind be good? I ended up doing it with a little 22" push mower and had difficulty keeping grip on the slope with my shoes. I seriously think I'll have to wear spikes. I know this sounds a bit outlandish but it really is that steep. Anybody had good experience with a wide low CG walk behind?