Which kick is most optimal to go as far as possible underwater while holding my breath with bi-fins?

Assume I want to go as far as possible underwater while holding my breath with bi-fins. Which kick is most optimal, assuming proper technique? Dolphin, flutter or something else?

I'm aware of {1} but they only looked at velocity and amplitude.

References:

• {1} Robinson, Peter; Adams, Taylor L.; Rose, Kali; Scharbrough, Mickey B.; and McLean, Scott P. (2018) "Kinematic Comparison of Underwater Dolphin and Flutter Kicking Performed in a Prone and Supine Body Position," International Journal of Exercise Science: Conference Proceedings: Vol. 2: Iss. 10, Article 44. Available at: https://digitalcommons.wku.edu/ijesab/vol2/iss10/44