I just purchased these front carbon glass fins ...thought I'd try them out still keeping the shaper rears on .and exchanging the fronts .
the front shapers do have more flex .but these carbon sure do have a bit more drive with the carbon added ,They where a little smaller compared with the front shapers and thought they would be too small ,but not to be ..I did have a really nice sliding turn with these fins and I was amazed to see the flex from a bird eye view and never realised how much fins do flex ,and bend according to angles ,you can see in the second photo how the fin is way out ,yeow .vid coming soon ,have you experienced any difference in flex ?? what is your favourite flex ,I have noticed a lot on the bottom hand turning