Mister_Bubble wrote on Apr 15^th, 2009 at 3:49pm:

How much of a filler do you need? 3" or 1 foot? How about a block of ethafoam?  NRS (and others) sell blocks of ethafoam - you could probably use the mushroom head velcro-type stuff to hold it in place when needed.

Ditto; Foam Block, That's what racers do in a pinch.

I was also thinking you might get a pelican box for your camera gear. They're stiff enough to be a foot brace up against the float box. If that's not enough put a drybag or small pack behind it too.

But if you feel the need to get the tools out do the sliding seat, don't drill and mount a foot brace. Foot braces are over rated for tripping IMHO. Got one in my solo but not in the stern of my tandem.