Got some Ultegra calipers on one bike and some of the forged lightweight Planet-X style calipers (these) on the other bike.
The forged ones are ok but the Ultegras feel much more solid and powerful. So I was thinking of swapping to another set of Shimano. Question is though, would 105 feel similarly powerful or even Tiagra? Or is there a noticable improvement with Ultegra and worth paying the extra?