I've gotten some good progress on my army, and I just started basing for the first time. I'm pretty satisfied with how the bases are looking for my individual models, and so I have some idea to base the trays themselves.
I've never done any basing before, so I worry about the basing material staying on the trays during transport. Do you matt varnish spray over the top of the basing after it's all done? If so, would that make the interlocking trays even harder to pull apart during gameplay?