Another thing, I've dropped the seat a tad (about 24.5mm) since that picture. Do you see the little 'elbow' in the seat spring?
I've dropped the bolt into that by Dremelling off part of the spring's tang. The stepped washer thingy can't slip out because I gauged it first, I did not take the entire hook off.
I'm supposed to be a physicist-engineer so I use proper engineering terms
