Originally Posted by almortal
...putting their thwart hinges on a dry bag to put in place of the rear thwart to stow more
Seems kind of overkill when you could just put the hinge pin back in then put a cam strap through it and the dry bag handles / attachment points.
Here is a link to the Hyside Zipper. Certainly a cool, spendy idea if you are thinking about the loss of structural support by removing a thwart for r2ing. If not, then I'm sure you'd get more and easier storage from a Watershed type dry bag.
RMA: Hyside Thwart Zipper