"Sounds like next year I may be picking more and trying a kilo of Sloe for 6 bottles of wine as well, just means a demi john out of action for a whole year, thats my only reservation about country style wines which need to mature in bulk for a long time."
I used to make tons of country wine, all kinds, but eventually ended up sticking to elderberry and sloe as they were the most reliable at turning out a tasty product. Sloe wine particularly is really drinkable from a very early stage as it's so fruity. Personally I don't think you need to mash the sloes - just freeze them in the freezer first as this ruptures all the cell walls and lets the taste out without letting out all the gunk that then needs clearing from the wine.
We had a basic recipe that worked well:
3lb sloes
juice of 1 lemon
make up to a gallon with boiling water
let it steep for a week
strain off the sloes & add 2 1/2lb sugar, and yeast.
Ferment in the bin until it stops. Then pour into a demijon to settle and clear. Bottle and drink !
By the way, they used to say wait until the first frosts before picking sloes, but this is way too late. As I write this I've just been out and picked 4 lb of sloes, they were very very ripe and starting to fall from the bushes - and it's still only september!
Another by-the-way : sloes are not edible straight from the bush, if you try one they're horrible, totally acrid and drying in the mouth. But when you steep them you get a lovely plum flavour, much stronger than from any plum, and the acrid part is left behind in the fruit. They also come in different sizes. Some bushes produce fruit approx 1 cm across, others can be more like the size of grapes. The smaller ones are strongest in flavour but are a pain to pick. The bigger ones when really ripe are almost edible and you could make jam out of them.