I had the thought over the weekend that it would be really awesome if the trays shared dimensions with the 'standard' Battelfoam trays. Not 1:1, of course, that'd be silly, but so you could replace a layer in a
BF case with 3-4 PACK Mini trays. So (using Bloodbowl as an example) you can carry a single team in the mini or a bunch in a regular case.
I don't think the math works for this, though... I guess I could order a 2.5 inch tray and try making a 'shell' for a couple.