I started with Quattros. Borrowed Jets and Biofins occasionally to try out. Now, I'm using the FF Tan Delta. It suits my diving needs best. Excellent control, easy to fight current, light, compact. Whatever finning style I can do with Quattro and Jet, I can do with FF. But to go fast and less effort, the finning style showed in FF website (modified flutter) is still the way to go. To me, less effort and superb control made me most happy with these fins.
Before buying by TDFF, I tried out the non-tan delta FF. It felt effortless but still propels excellently. I believe this "effortless-ness" made many divers go "this fin is too floppy, can't feel it at all". Personally, I preferred the TD due to the higher stiffness fin and better fin feel. It's a personal preference. For the other models, it was simply out of my budget.
I must agree that it doesn't perform as well on the surface. For that I much prefer the biofins.
Before buying by TDFF, I tried out the non-tan delta FF. It felt effortless but still propels excellently. I believe this "effortless-ness" made many divers go "this fin is too floppy, can't feel it at all". Personally, I preferred the TD due to the higher stiffness fin and better fin feel. It's a personal preference. For the other models, it was simply out of my budget.
I must agree that it doesn't perform as well on the surface. For that I much prefer the biofins.