My 35 year dive buddy and wife convinced me to post this. I was concerned that this may not be the correct forum but it is a pretty general inquiry. I purchased new video dive light's and noticed that my new system was negatively buoyant. I have flex arms and wanted to try to make it closer to positive buoyancy. I was at Home Depot and saw the insulating covers used for a/c or hot water lines. It is water proof, flexible and fits my flex arms perfectly. These most closely resemble a noodle people use in a pool. Will depth effect their lift? Will they compress and become a brick? My system is a tg4, case, dual Kracken 5k lights, flex arms and base. Tanks for the help. Bill
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