One of the biggest "aha" moments of diver intuitiveness is learning how to fin effectively for your fin.
If you kick the exact same frequency with any fin you wear, you're going to be very opinionated on which fins "suck" and which do well.
Tiny rinky-dink swimming fins are light and either
A) Long & floppy
B) Short and stiff
If you flutter quickly in them you swim fast. If you kick very long strides in them with a delay period between each kick you move nowhere.
Jet fins on the other extreme you want long strided kicks. Short rinky-dink finning is going to get you nowhere and cramp your legs. This is why frog-kicking is utilized stereotypical with Jet-finning. Whereas with other fins you see flutters predominately used. You can still flutter with Jets, however the kick style is more long strided with pauses between each power kick to let yourself glide. Jet fin flutter kicks should have follow through with their kicks. Whereas floppy paddles you kinda want to recoil immediately into follow up kicks.
Hinged, Splits, & Force fins all do very well with quick flutters, with varying degrees of frequency between kicks.
Paddle fins are pretty much all over the board because they exhibit a more varying degree of floppyness/stiffness between brand/models.
Look at sea otters, sea lions, & seals swimming. They often do one power stroke and let their momentum glide through the water. Obviously divers have way more drag but we too can utilize this with stiffer fins.
On the other hand, damsel fish, reef fish, fish that aren't built for speed; they have have floppy fins and need to vigorously fin rinky-dinky to shoot away. So if your fin is like that then you too need to do the same to travel.
