I find them expensive, in the first place (compared with cord), and they
break. Maybe I've been unlucky. I have rough ground, so there is occasional
bramble, gorse, broom, apart from oak seedlings etc. I used to have a device
with three retractable small (1") steel blades, and a gliding bowl, and this
worked wonders for me on the tough grass. Then I tried nylon, with no end of
trouble.
David

"David Hill" wrote in message
...
"....... I'd steer clear of nylon blades ......."
Interesting, I find them good on rough grass, Tussocks , nettles etc.

What don't you like about them?

--
David Hill
Abacus nurseries
www.abacus-nurseries.co.uk