What a timely thread for me. Lot's of great links, thanks.
I used a plastic bucket seat when I was mocking up my trike build. When it was ready to road test it I still had the bucket seat on and it felt really comfortable on a couple of short trips and I had thoughts of just leaving it on.
Then I took my no suspension trike out on a rough trail. Hmm, a rigid no give seat doesn't seem like a good idea anymore.
So lot's of great links and ideas in this thread. I'll sort through them and design something that has some give to it. Gotta reduce the unsprung weight a bit.
Ron
The seat seemed like a good idea at the time.