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That is a seriously bad strategy.
If you bungee a bag of that size on the side of your tank, you will create tremendous drag on the side of the tank. I will make swimming very awkward and inefficient. That is why I prefer to carry two 1,500 lb bags, one on each side. It balances things out much better. It is also much easier to rig two bags to a bus-like object. You do have to carry a lot of rope as well, but if you have one bag near the front and one near the back, it is much easier to balance.
Try it and see if you don't like it better.
I think at this point we should either close this thread or move it to Whine & Cheeze ...
... Bob (Grateful Diver)
Before it is moved, let the record reflect that Air2's and their ilk stink on ice.![]()
For those of you who are sad to see this thread die, don't despair. As is true of almost all ScubaBoard threads of this ilk, before long someone will come across it, read the first couple of posts, and then write a response, the substance of which has already been talked to death. The thread will be revived and will soon be going strong again.