Teamcasa:Bob, From what I've read and seen, you wear the fins in the flipped up mode for entry, either by giant stride or doing a shore dive. After you have entered the water, a simple kick and the fins deploy and lock into place. To exit or climb a ladder, you release the locking tab and fold the fin up, climb ladder. Looks pretty simple.
Dave
It is simple to lock or unlock the fins, and it's hands free.
With Amphibian fins you can do everything any other fin can do, and you can also do everything else no other fin can do.
I've worn them on real boat dives, in rough seas and moderate current.
Chad