Just to close the loop on this as OP... Have installed some 30m runs with my CCA and am getting 930 Mb/s Duplex... To be honest other than being CCA, the actual quality of the cable was pretty good (Eagle brand) in term of the thickness of the conductors and twisting of the pairs - better than some full copper cables I have inspected. It was an easy cable to work with due to the light weight and clipped nicely to brickwork.... Although non-stranded cable is sub-optimal for terminating as RJ45 I experience no problems in terminating well over 20 RJ45 crimps... I would say terminating to a face plate was not very good as the conductors sheared off a couple of time - was my first time doing this so maybe would have worked if I had done a better job of straightening the wires prior to punching them and/or having a better punch tool. The issues I experience with the face plate alone would make me steer away from CCA in the future as clearly copper would have not had these problems
So overall, happy I went ahead and installed my CCA cable, as I just need gigabit (no PoE) which this does with ease... In the future though I certainly would go full copper, purely because of the issues with the ductility of aluminium compared to copper when punching down for face plates.
