I ended up opting for the ECS 2 piece discs, which equates to just over a 3kg weight saving on the front axles when compared to the OEM R32 discs made by Zimmermann.
Have to say there is quiet a bit of unswept area on the rotor though on my 996t kit.
I'm currently getting the place I purchased them from to investigate with ECS as I'd say near on 10mm is unswept - but no over lapping from the pad as it's fully in contact with the entire disc and the caliper is only a mm or two from the edge of disc also - so the adapter is correct also.
Also double checked the p/n on the pad and that tallies up
Will post some pictures of my full set up when I get a chance