We could go round and round in circles for ages arguing the toss! As I've mentioned above its down to individuals definition/interpritation of the word "Custom".
The whole point of my initial post was to get the point across that there is indeed more that 1 spec of newman cam for the RST.....a point I now believe to be clear.
As Christian has pointed out there is however only 1 cam available direct to the General Public....so thats Christians point which Is also clear.
I dont believe carrying on debating the ins and outs the definitions of words terms etc will get us anywhere nor serve any purpose so Im reluctant to post further.