Originally Posted by rpenmanparker

Actually 1 cm change is quite a lot on a saddle.

One other thing you should remember: the saddle position is a completely independent adjustment. It has nothing to do with getting the right reach to the handlebars only with butt comfort and pedaling efficiency. It would be helpful for you to clarify what you mean by "there was an improvement in support but was to far back". Do you mean your pedaling was adversely affected, or do you mean you were having trouble reaching the bars. My point is that you get the saddle right for comfort and pedaling efficiency without regard to reach to the bars. When the saddle is just right, if you need to adjust reach, you don't move the saddle, you move the handlebars with a different stem length, angle or flip (up or down).