Ok, so not concerned about cost between the two saddles lol. A thudbuster is a bit much for me. I currently have a Specialized something or other without suspension, but I do get a lot of bumps in the butt from the road. Is there any loss of power on hills with the springs? I had a suspension post with a really cushy sprung saddle at one point (scary, I know, and yes, it hurt) and I lost a lot of power, I could feel it rocking under me. Have you experienced anything like that with the Flyer?