I looked at the Grid-it, thinking it might work for me. Nope, failed- my objects were the size they were supposed to be, not the sizes the Grid-it people guessed at.
My solution was to take a piece of stiff but flexible plastic, in my case a Fisker's fabric cutting mat. Measure a piece of it to fit in the hydration pocket of my pack, then put holes in it on a 1" grid. I can now run shock/bungie cord and paracord through those holes, and tension off with cordlocks and/or figure-9s and/or knots. And this holds your stuff. So I can take one panel and by relaceing to fit the mission at hand, it literally goes from organizing dice, pens and computer gear when I'm gaming with friends, to a blow out kit and magazines when I'm going to the range, to ratchets, a socket rack and wrenches when I"m going to help someone with a project. And not only can you rig it so it really does fit your gear (including molle pouches), it nothing to add velcro to it, or a hanging loop, or if you really want to take your time setting it up, you could rig it to be double sided.
"Even if it is only the handful of people I meet on the street, or in my home, I can still protect them with this one sword" Kenshin Himura
Necessity is the mother of invention. If you're not ready, it's "a mother". If you are, it's "mom".
"I love democracy" Sheev Palpatine, upon his election to Chancellor.