I have, but there are too many other variables to make a valid comparison of fins. Different boards, Different foils on the fins even though the same template. etc. Mike
I used fiberglass (high profile shaper template…) glass ons , on one of my first fish, went great. Used the template of the fins…made some out of balsa foiled close to the originals( not exact…they were made by me!) and liked mine better.They were lighter,and just felt better in turns,same drive. Same board both sets. I probably just liked mine better because I made them. The difference was negligible…in a blind test no way could I distinguish between the two. Have fun…