First, thanks to @tshelley for his great insert and all the work invested in it. I had an issue with the trays where minis kept falling out of place and every time I would grab a box I had to be super careful not to move it to harsh cause pieces would fall in the box.. This doesn't solve for vertical storage, but it makes it a bit better. At least the pieces stay in the tray they belong and in most cases the snug fitting keeps them where they are. You will want to test with the 2 different heights for the 5x3's as they add different stability depending on the height of the minis. The only group of minis I had a slight issue with fitting is the Reavers (half zombies half tank) because they occupy more space than the average troop or bystander miniatures. Again, this model is a slight improvement but not a 100% solution... I dont want to put magnets on the miniatures so this was my next best alternative.
The author marked this model as their own original creation.