Aaahhhhh... yes Stevens Edger.. I had seen them before but somehow assumed they were for cutting garden bed edges! I'm definitely going to look into this!
I looked up some older (~2004) posts on the forum, doesn't seem like they're used so much these days, if they ever were. Wonder if they're a bit fiddly to use... Always thinking of ways to cut down job time and labour, but I'd assume that everyone else is as well! Which makes me think twice when things like this aren't so popular.