sorry 'bout that . . . continued:

we were quite impressed; had test-ridden a couple other suspension seatposts, but 'buster was the best.
The only other suspension we liked a bit better was the Allsop carbon fiber beam (no longer being made).
However we have never had suspension on our own personal tandems; stoker Kay must have a tough little butt after 36+ years of tandeming!
Pedal on TWOgether!
Rudy and Kay/zonatandem