you certainly have improved from the last update, congrats on the additions. Loving the Grid game.
I would be very careful about those zip bags, the ones that fit so you can seal them up are fine, however the other larger games will cause damage if stacked, even slightly. This goes for both horizontal and vertical staking. I speak from experience, I also tried those but the red zip line over time left a line indent in the seal and the box itself, especially cardboard ones but plastic cases and metal cases too.
This is of course over a longer period of time, talking months.
Please store carefully.