I was told recently contractors never use self propelled. It seems they indeed do. I would have thought they viewed it as they do with bump feed heads on whipper snippers. Too much wear rate.
Onto your next point, you have me wanting to get my grime soiled hands on a Greenfield!! That edging feature sounds unreal, unless it requires scraping those nice wheels.



Ahh, if only victa had kept producing the thumblatch catcher series, they would be in better shape today!