The clams in Vietnam are ripped off the reef, therefore there foot, and bysal fillaments are damaged beyond repair. Death of the animal ends in almost every situation.
Also, IME, Vietnam does less shipments to us than a place like say Fiji. Therefore, often times the clams may have to siit in sub standard (stressfull) conditions longer than if they were in a more active collection zone.
You have probably heard about this because of the new Solomon Island teradrop maximas coming in to few (maybe only one) wholesaler in LA. The Solomon Island teardrops are in much better shape because they are attached to a rock. This shows that their foot isnt damaged.
Im hoping to see these clams live just as well as my other Pohnpei maximas. if they do, ill definately pick one up.
HTH!
John