As Common Cornish (Kernewek Kemmyn) is used by the majority of Cornish language speakers, long may this course (Holyewgh an Lergh 1) remain in its present form. The Standard Written Form may have been adopted as the official variant but it will surely be generations before it takes over completely (if ever). As some Cornish books are already available in either form, SWF could also have its own edition, if necessary.
Perhaps I could add (for those who don't know) the difference between KK and SWF is minimal and they are mutually comprehensible.
Just to clarify, Unified Cornish (Kernewek Unys) was the original revived form of the language and was based on the pioneering work of Robert Morton Nance who steered the revival for the first three decades of the 20th century. It was superseded by Common Cornish (Kernewek Kemmyn) in 1987 in line with updated scholarship. This has a standardized spelling system.
Standard Written Form is really just a hotch-potch of compromises imposed on the Cornish people (in 2007) in an effort to reconcile differing, minority opinions about the language, and qualify it for much needed government and EU funding. Long may KK books and CDs be with us!