So this is what a dismantled Bobber seat looks like. Doesn't seem overly complicate if someone decides to reupholster the seat or add more padding to it. But the shape may have to stay the same unless you're willing to cut into the metal bit.

Now if we could just get them to sound right!Looking good.
I did the same except that I put a metal washer between frame and seat post. And it works really well. I did the first ride today on the modified seat - and it felt very good.Have raised my seat by shimming under seat itself and then put a nylon washer between frame and seat post on the forward seat bolt. Feels (for me ) far more comfortable.
Be interesting to see the drawing.One that provides some slight spring action to help the seat absorb some of the bumps in the road.
He's thinking about a design (drawing to come) where the seat bracket has a heavy spring hinge
behind the 2 side bolts and just before where it connects to the seat.