I sent maytronics an email to clear up the naming and models and they replied to go see a dealer. I have tried doing research and I give up. If they don't care about the customers to be straight with them, I don't think I want their product. I think I am going with the Hayward TigerShark QC. anyone have any experience with this one?
I don't know about that specific model, but Dolphin does traditionally make mail order models that are almost identical to their retail models. Often they will have minor differences in color scheme, cord length or run time. They even love to play these games on their retail models. I currently have a Dolphin Diagnostic Pro, which was the "professional" version of the Diagnostic with 1/3 longer warranty, and a duller gray and white color scheme when you look at the fine print details though, you find they changed the cleaning cycle from 3 hours down to 2 hours. (I bought mine cheap as an open box new deal on ebay)