I have sprung and unsprung Brooks on most of my bikes. If you are not concerned about the cost or weight, I would suggest a Thudbuster seat post and whatever saddle you are comfortable on. The Thud soaks up the big bumps, and smooths out many road irregularities. Its design allows it to move more in-line with the motion of the bike (when a bump is hit), and the long-travel model allows you to fine-tune the cushioning for your weight or softness prefference.