jim T.:mdb,
Thanks for your response. Sorry it took me so long to see it.
Big White Square. Thanks also. I've seen and read that site.
Hopefully others who haven't will learn more.thanks.
jim T: The folks @ Oceanic did copy the Apollo bio-fin design-don't blame them-the Oceanic fin is not bad. It is simply another imitation. It is not 100% natural rubber. The only real 100% natural rubber bio-fin is manufactured
by www.diveapollo.com