I have been looking at getting a Corbin solo like Hagatha's set up but the only place i can find that distributes them in Australia is way over the other side of the country and they want nearly $700.00 au and a 12 week wait to get it to me.That seems a bit too much to me and i worry that i wont get what i want and the lack of a duct concerns me some-what. I've tried to email them direct but get no reply. I've started looking into getting my stock seat re-done
I'm not sure how it's done where you live but, get the corbin. Don't worry about the duct.
You are right it took me several calls to corbin to ensure I would get what I wanted.
I feel the stock seat is way too flat. The corbin cradles your a$$ nicely. I've only got a bout 400 of the 1000 breaking miles but I can tell the difference already. Order directly from corbin if you can.
I'm out of town right now and I'll post more picks when I get home.