Can any professional gardeners tell me if there is a good landscaping forum for this sort of topic? I’ve had a look but not found anything of the calibre of STW!

If not can anyone tell me whether the new Hayter Harrier 41 is any good. It’s for professional use but on small to medium residential lawns. I’ve had nothing but trouble with my last mower a Honda HRX 426 and before that i had 7 years great service out of the heavy duty Hayter Harrier 48 but this kind of mower is just too big and heavy for me to handle now as many of my gardens have steep steps to get up and down. Many thanks!