Hopefully some of the commercial divers will chime in..unless you mean by commercial you mean you want to become a dive instructor....I thought commercial divers have unique equipmentAt first rec but I will certainly do all the tec path, it is a path that interests me a lot. More later this year I will start a professional shallow diver course, so yes I am preparing to be a commercial diver. So I am also looking to buy equipment that will serve me for the future.
For now the equipment to be purchased will be: Apeks MTX-RC Regulator + MTX-RC Octo. Shearwater PERDIX AI Computer and probably one more computer as a back up maybe a Teric. and 5mm wetsuit + hood and etc.