Are my regs assembled correctly? (Doubles)

[kidsdream]

While I initially had my LP/wing inflater hose coming from the RH post (as per standard tech orientation), both of the Cave instructors I have worked with to date both recommended to route the hose from the left post.

Their logic was based on the fact that the inflater actually becomes a potential warning mechanism in case of a roll-off. As the wing inflater is used much more frequently in a cave environment that your drysuit inflater, a complete roll-off can be noticed prior to switching to your short hose reg. And if you do have a roll off you can easily orally inflate if required.

Sorry to disagree on that, but actually risk of roll "off" IS an issue in overhead and both the primary and the main buoyancy device inflator, among other reasons, are on the right post because roll "on" is important in overhead environments. Going further about the primary reg, the reason is not only because it is your primary reg, but also because it is the hose you donate, and in case of accidental roll off when donating, it should happen to you, not the one you're donating to, because he is probably in a higher stress level and you have imediate access to your own valves to reopen the backup, but the OOA diver have not.

I understand the matter of redundancy, and of course we have that in caves, but one rule is important, redundancy, regardless if a double blade or drysuit, is for emergency, you must think your configuration in such a way to never need to use the redundancy.