Dropping the 6F branding wouln't be that big of a deal if it was a park like MM, WoA, EG, etc. They're referred to by the "other" names anyhow. The problem parks would be, of course, 6FoT, 6FA, 6FoG...
That being said, for a company that values expansion above all else, I seriously doubt they'd ever sell a park.
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Why do I smile at people who I'd much rather kick in the eye?
-The Smiths...(and me)