Dauntless
Contributor
To help with buoyancy, I added some plumbing insulation sleeves to the flex arms of my LED light tray. It looks like this..
The smaller insulation sleeve is plenty buoyant enough and it requires just a small amount. You can trim it with scissors to adjust the buoyancy. It fits very snug as you slide it on to the arms. I have them positioned just below where the LED lights would be. The insulation resembles neoprene. I'm bringing extra to account for compression at depth just in case. The cost is soooo cheap.
---------- Post added January 29th, 2015 at 11:07 PM ----------
This is reassuring. Thanks for posting.
If you go down very far, the foam will crush.
---------- Post added January 31st, 2015 at 12:29 PM ----------
Ask yourself, is your underwater posture horizontal or do you swim with feet down. When you can keep a horizontal or even head down slightly posture, then you are OK.