Shown above and highlighted in black, an optimum load bearing surface would provide an average deceleration of 39 G's based on a 24" drop.

Due to the variances in load bearing surfaces in the foam lined transit case shown on the left, average deceleration ranges of 88 to 135 G's based on a 12 inch drop height would be realized.

Which custom case interior configuration more closely resembles the protective packaging used by your equipment OEM to ship their product to you?

Unless their shipment arrived damaged, it's a prime example of a functionally designed one way packaging solution.