The Beach Boys output decline by decade:

[Mike's Beard]

And to 'mikes beard' I never said sunflower, surfs up & holland weren't legitimate BBs albums, but holland was/is the last BBs lp with historical value and the end of the 5yr progression that started with smiley smile&wild honey.

No you didn't but I was just applying your logic to what constitutes a 'legitimate' BBs album. As the bulk of Sunflower was made up of the rejected Add Some Music material and Cool, Cool Water is a two thirds Smile/Wild Honey recording is it somehow not a real BB album?
Surf's Up contained Take a Load Off Your Feet -  an Add Some Music holdover -, a re-write of Riot In Cell Block #9 with different lyrics and a 5 year old title track.
Carl & The Passions contained a couple of 2 year old Dennis solo tracks.
Holland opens with a song first started 2 years previously and Big Sur is a re-recording of a Sunflower era track.
The band reused/reworked older material constantly throughout their career, there's only about 4 albums they put out made up of 100% 'fresh' material.

[Douchepool]

Yeah, if there's one thing the Beach Boys always did well it was recycle a good riff.

[kookadams]

Yeah but youre talking about working titles of what became sunflower...