as I have seen people tend not to purchase the green Nitrox models unless required by law... it is more of a hassle to change different M26 tank valves to all the tanks and have different dedicated hoses and everything.Well I am hoping to fully assemble a twin rig. Not neccessarily making single cylinder diving a priority at the moment.
As for deco regs, do they specifically need to be those Nitrox ready ones with all the green or can I settle for something simpler?
the "nitrox reg" may also not be oxygen clean after you use it for a while so if not specifically needing a green one just for the nice color and if not required by the law in your country to have M26 regulator and valve on deco bottle I would just get a normal regulator 02 cleaned and use that instead. make sure the tank and valve are oxygen cleaned as well before putting 100% into it