After messing about all morning i can now determain that one click is coming from the front and then the second one coming from the rear within about half a second of each other, the front always being the first click.
It sounds like it is coming from the center of the car but can't be sure.
Again it only does this under braking and when nearly coming to a complete stop. I've had the wheels off and checked pads and calipers and nothing looks out of the ordinary.
Really baffled by this as i don't think i've ever heard of this problem, the only think i can point out is that i've just had a new zorst fitted and the clicking started soon after, i have checked that out to and i can't really see anything there either.