Matt S.
Contributor
I'm no DIR diver, though I consider myself a sympathizer... I take what I like from the system. I adopted the necklace because it sure seemed like a good idea, and never looked back. (And the first time you switch to the backup with no hands, it's pretty cool!)
Like others said, avoid the Manta necklace. I tried it and learned the lesson too. Make your own with 1/8" bungee. Tie a knot in each end, and secure it to the mouthpiece with another ziptie. Stretch it all you like and it won't pop loose, unlike the Manta.
Once you switch, you just have to make sure that you tell your buddies how you do things.
I plan to move to the 5' hose, but have just been using the 40" hose on my primary for now. It works well enough but longer is better. Of course, you have to drill deploying and stowing the long hose, so there is another skill to learn.
Like others said, avoid the Manta necklace. I tried it and learned the lesson too. Make your own with 1/8" bungee. Tie a knot in each end, and secure it to the mouthpiece with another ziptie. Stretch it all you like and it won't pop loose, unlike the Manta.
Once you switch, you just have to make sure that you tell your buddies how you do things.
I plan to move to the 5' hose, but have just been using the 40" hose on my primary for now. It works well enough but longer is better. Of course, you have to drill deploying and stowing the long hose, so there is another skill to learn.