I just had a birthday and mentioned the organizer grids for my Pelican V800 to my wife. What do you know it showed up as a birthday present. I swapped the grid with the bottm foam in my case per the instructions. I think it is going to work for using the case fore multiple firewarms vs cutting the foam and having different foam sets for each firearm. I tested a few configs one night a week or so ago and it seems really solid. I have not transported anything but I like the idea.
I was looking for real world experiance for this system from someone here a while back and there was not respone. I figured I would followup with my experiance in case someone is interested or sitting on the fence.
There are reports on internet reviews of the case closing hard after install, I did not eperiance that at all. I following the supplied instructions and fit/install was perfect. Magpul has systems for a few different cases now as well as a couple casses of their own. I'd probably opt for a Magpul case with Daka installed vs retro fitting something due to cost, but if you already have a case and would like to use it for many different firearms this might be an option vs buying multiple foam inserts and cutting to fit for every firearm.
-Jeff