Posted: 12/10/2015 at 18:35
I have cut many grass slopes but a lot depends on what you are cutting / how steep the slope is, then you would pick your machine. I used light 25cc strimmers ( which are probably the easiest to use on steep slopes) 50cc brush cutters - lawnmowers with or without collecter or specially designed bank mowers.
I wouldn't consider anything but for petrol machines, nylon line for strimmers 99% of the time very rarely I have ever had to use a blade on anything that 3mm nylon line wouldn't cut.
If you slip while working alone and break your leg for example that could be a problem.