Cheers everyone,
two bucket method, better detailed on detailersworld.com but briefly,
essentially 2 buckets of water (preferably warm) one with the soap in and the other clean water,
mit into soapy water and wash the first panel,
mit into clean water to rinse,
mit into soapy water and clean the next panel
keep repeating essentially removing the dirt and debris in the clean water then the soapy water is not contaminated with dirt and grit, just more thorough washing method.
when either bucket gets dirty just pour away and fill up another, i usually only do this if the cars particularly dirty but normally just the water gets replaced.
I am using a meguaires gold carwash and lambswool mitt
sonus green clay with lube which is meguiares gold in about a 1:10 mix so quite high strength
I used black colour magic polish as it had a few swirl marks from washing it with my mates stuff lol
this time around I used reeeeeallly old school
http://www.motorshop1.co.uk/mer.htm
classic which i've had for about 7 years lol fantastic stuff which I did two coats of, usually use a carnuba turtle wax but was a warm day with some direct sunlight which I can still use the mer in.
also Gumi Pfledge for the rubber edges to prevent the common cracking.
Hope this answers some questions.

inky: