I believe pride of ringwood hops may be used in the Pale Ale cans, but if you like the taste of the bought variety, you will be dissapointed if you only use ringwood as it has a very low flavour and high bittering effect.
Coopers will give no technical info regarding their cans, however, you will notice their Pale Ale dry yeast sachets contains 2 separate types of yeasts. The larger particled brown yeast is their generic rapid acting and the second smaller particled lighter coloured yeast is reported (through general gossip of those in the know) to be Safale S33, which is excellent for ales & stouts.
I have had good results with adding 1.5Kg liquid LAM, 150g corn syrup, 20g fuggles + 8g hersbrucker hops @ 30 min boil, and 10 min finishing steep with 8g fuggles + 3g hersbrucker. Strain through stockings when pouring into fermenter. When you make your yeast starter add an additional 7g sachet of Safale S33 to the Coopers sachet to have the correct pitching rate of 0.5g yeast/litre of wort. You must rack after 3 days to reduce off flavours. This recipie gives a very full bodied ale somewhere between pale and real ale, a good chilly weather guzzle.
If you insist on culturing yeast from a bought pale ale bottle remenmer it will not take under 27 degrees C.
Vin.