Yes it has always been something of a mystery to me too what the Cyreniacs really thought.
There is a chapter which contains comparisons between Epicurus and the Cyreniacs in the book: "Pleasure in Ancient Greek Philosophy" - I skimmed enough to see that it goes into great detail (and it hurts my brain, so may not read it).
Which you can find the link to the PDF of the book here:
RE: Do Pigs Value Katastematic Pleasure? ( Summer 2022 K / K Discussion)
"Pleasure in Ancient Greek Philosophy" by David Wolfsdorf
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I prefer to keep things simple, though I may come back to diving in deeper into all of this sometime in the future.
For now I would like to think of pleasures as a bouquet of flowers -- everyone has certain flowers that they like better than other flowers and the bouquet is best with a nice mix of flowers -- and everyone is happiest when they are free to choose for themselves which flowers to have in their bouquet. The foundation of the best life is like the water in the flower vase -- we need safety, freedom, self-suffiency, friends, wisdom, peace of mind, good health (these are katastematic?) The flowers are the daily changing pleasures of the sweet life which are a mix of physical and mental pleasures (these are kinetic?)