Regulator Necklace Setup

[ink]

I'm looking to switch to a hog setup with primary donate. I bought a necklace, but how do I actually attach it to my regulator? How do I measure what the ideal length is?
Also, what do I do with the clip for my new extra-long primary reg tube? Why do I need a clip? The videos I found made it look like I just wrap it under my arm and around my neck, so why would I clip it?

 

[Pearlman]

I have a silicone necklace and prefer it because the skin on my neck gets chaffed and suffers irritation with a red weal mark if I use a bungee cord… almost like a rope burn! However the problem with the silicone necklace is that the loop that goes over the mouthpiece is a little too loose and the reg can fall out and dangle from the short hose if you accidentally tug the small reg hose or the reg itself.

I think it needs an extra zip tie woven thru the silicone band and tightened down over the mouthpiece …

 

[TrimixToo]

Another thing to consider is that the necklace can be sized so that it holds the reg in your mouth. If you ever think you might be losing consciousness it could save you until you run out of gas in the tank(s). Just another tool in the box that seemed worth mentioning.

 

[jborg]

Another point which I haven't seen mentioned is that the necklaced regulator should be bungeed close enough under your chin that in the event you lose/donate your primary, you can simply tilt your head down and "switch" to the backup regulator without using your hands.

This sounds cool. I’ve never been able to accomplish it when I’ve tried, regardless of necklace length. Maybe a somewhat stiff dry suit neck combined with a 10mm hood restricts movement too much or I just haven’t got it in me to do the required head movement.