Thanks spartan, I appreciate the concern. I think I understand what you mean by daisy chain with a max of 2 but it was actually an eleco that roughed the wirng in before the plaster ages ago and he simply used the method of having all the twin and earths in the ceiling and then ran twin red/white down to each switch? The rest of the house is that way so i'm assuming that was the easiest option at the time? In regard to only having 2 lots of cables(power in and power out) we have done that at most of the light locations except where it didnt seem practical ie: the joint in the pic shoots off to a floodlight in the eave and was easier i guess to have a cable end at the floodlght to minimise connectors etc in the eave?
Trust me I am staying safe and have arranged an eleco to come in when ready to connect all new wiring up to a new circuit in the meter box and he has agreed to do a visual on my connections whilst he's here. So far i havent had power going to any of my work and because its an extension that i built I know whats alive and what isnt.Again.....much appreciated. Cheers