captain
Contributor
The Pelican racks have a place to screw them down. I just screwed two strips of carpet covered wood to them and it ellimated the need for a seperate mat.
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I also have a bunch of links for the various rack systems from when I was looking at the options.
My friend has two 8-tank caddies on his boat. They work fine but can be tippy when loaded. I caught one that was about to roll over in rolly seas one day. They're light and easy to take off the boat for scrubbing down. There's not enough room between the tanks to accommodate BCs on the tanks, unless you only use every other slot in the rack. We prep our rigs on a bench that we use for gearing up--it's the top of a giant-size ice chest.