Umm, how do i swim?

I think whatever you feel comfortable with, I do the left right thing but my freind does it the dolphin way, try both and see which you find most efficient.

If you like the dolphin kick more then consider getting a monofin as it is more efficient for that type of kick....and after all there is no such thing as too much gear

Andy
Sydney

This is what I would recommend:

Take the fins your normally dive with and go to the swimming pool. With the fins on, dive as fast as possible, one length of the pool using freestyle kick and, after a full rest, one length using dolfin kick. Measure both your timing and your pulse rate (per 10 or 15 seconds) after each dive. So you will know which kick is faster and which is more energy efficient. Under real diving conditions use faster kick when speed is most important (like reaching the surface when out of breath) and use more efficient kick when doing some distance diving/swimming.

From my experience in short bursts dolfin kick is faster because one fin does not get in the other fin's way but a freestyle kick is more energy efficient for a distance swimming/diving. Also dolfin kick puts more strain on your abdomen muscles.