Luckily the mower is easy to handle. The handle that one depresses to get the motor running is very light and fits snuggly on the grip bar so it's easy to push/pull with withe one hand and to control the wire with the other hand. When I used to cut a lot I used to think about how to simplify it and I thought of an overhead thing like that interesting old diagram you posted though I oculd see that having problems as well. I think having the time to do a cut leisurely is important and makes this mower a pleasure to use because it's so quiet, yet powerful and robust (just cut 1/2 acre of tall grass in prep for fire season or fairly rough old paddock. That makes me wonder whether the flap door/baffles puirpose was to prevent rocks and things from being flung out. I learnt to be aware of where I park the car.) I find exactly as you say : to cut away from the main. Lay the line out and constantly pay attention to where it is. Also because it ejects to the right it's sometimes important to cut in strips or arcs that traverse the lawn, or whatever one is cutting, to the left.
