Scared Silly
Contributor
If using a stage bottle that implies a tech dive. Which means all regs/valves should be the same, preferably DIN. As part of my course work we had to take a reg off a bottle and and put it on another bottle. The idea here is that when Davy Jones comes a calling and for whatever reason you have a good reg and it is not on the preferred bottle you could switch. That is especially important if you can not ascend directly to the surface, either because of a deco obligation or overhead.