Seems like a sprung saddle is liable to pogoing, isn't it? Nothing to dampen the bouncing movement.
Our saddles are those Specialized saddles with a deep groove down the middle and nice flat spots right under the sit bones--it'd be hard to give them up.
I understand that Cane Creed Thudbuster posts use an elastomer suspension that's immune to stiction problems. I have a $150 Cannondale suspension post on my solo bike that's never had any problems at all. I'm guessing stiction is mainly a problem with the cheaper suspension posts.
The point about Tamer is well taken. I should email them and see if they'll give me a deal. I'd sure love not to spend $150 on a seatpost right now.