And here's the way it works since adding the wings. Sorry I don't have a pic from earlier this week when the first 80% of the leaves fell. There are still a few on the trees, but not many................chim
A lot of people bolt on 2 sets of blades to get added lift.
I've personaly seen blades and pieces of parts be ejected from a RFM and std lawn mower frame unless it's rusted up or damaged it'll hold up the amount of space doesn't allow the piece of metal enough energy to do anything.