I have been working on this mod for the past week, in between work and other stuff.
My main reason for doing it was that I hated the stock seat, as it was badly shaped, and would cut into my legs, and also the height meant I couldn't flat foot it. It made it tricky moving around on gravel surfaces.
I used a drill with a sanding disc to round down the edges and take some meat out of the base, and it turned out pretty well.
The only problem I had was finding a good staple gun to bang in the staples!
I bought a cheapy, but that didn't cut it, so back to the hardware store. The salesman grabbed an electric one, and said this was what I needed. I brought along my box of staples (504 I think...6mm long), and he loaded up the gun. The first staple jammed! I laughed as he struggled to get the staple out, and couldn't.
Turns out my staples were a bit too wide for the gun, despite saying it was compatable. He ended up having to send it back to the manufacturers.
It was their demo model, so it was probably shagged out anyway.
Anyway I got a heavy duty hand staple gun and that did the job.
Tomorrow I get to test out the results, but prelim testing shows it to be a cheap improvement (apart from the cost of the staple gun!)