Is it my imagination or do a bunch of Cal Spas different series look a lot like competetive brands?  IE, a number of the Home Series look like Hot Spring and Caldera?  The Journey Series looks a lot like Jacuzzi?  Look at the Jacuzzi J-385 and compare to the Cal Spa J508.  Compare a Caldera Geneva to the Cal Spa Home Series H902 and the Hot Spring Grandee to the Home Series H908.  On the 908, its just the filter moved to a different corner. 
I also find it interesting that Home Series - Hot Spring?  Journey - Jacuzzi.
Seems like a blatant copy to me.  Why do they do that?
I had a Jacuzzi dealer tell me about this and I didn't believe him until I looked and saw for myself.  I found it kind of weird that Cal Spas would copy these other brands.