After riding my build for a few months, I feel I need the seat back a little farther. Problem is most seat posts don't give a setback measurement. My current post is a cheapy from the LBS. I'm considering ordering something new but don't want to spend a bunch of cash for something that doesn't get me anywhere (literally).

Here's the current set up...


I like the looks of the MICHE Supertype (Black) and the Nitto Crystal Fellow. Will this get me farther back?

Don't want to go this far...Nitto Wayback

Any advice?