A friend's homebrew made using a Cooper's kit, was better than the shop-bought bottled Coopers! Truly! I will have to check if he is still brewing - he is not local unfortunately [:-(].
"Brewed with choice malts and an extended top fermentation, Coopers Extra Strong Vintage Ale will improve with age, becoming more interesting and complex in flavour for up to 18 months. The results are well worth the wait! 7.5% Alc/Vol "
Then you would have enjoyed some Howard/Costello "Golden Showers Warm Yellow Ale" as did many brain-dead Aussies. For a while there it was provided in copious quantities - fresh, warm, and free! Now comes the hangover!