Welcome to our forum.
As far as shell molds, I think shell simulating is pretty common. For example: Artesian came out with a "new" design last year and called it the Saba, which is identical to the Natural by LA.
NO I DO NOT KNOW WHY HE WENT TO ARTISAN , COULD YOU ELABORATE PLEASE. p.s. thanks e1
Do you know why...?....The designer from LA spas is now with Artesian ....
Sometimes dealers that no longer carry a line will say things to justify why they dont sell them any more.