Well just be clear, this is the footage being debated.
When a case falls from a standing position, what you are showing doesn't happen. The base is obvisouly touching the ground already, so showing it being the "top" is disingenuous.
As far as the makeup of the second case and the depth of the sleeve, I don't own one so I cannot attest to the internal construction.
JV
Joe the fall test is simply a way to be able to film what is happening. If for example the case were to fall off a shoulder or a table then it's possible that the bottom of the case would be jarred a lot. And as far as that goes even in the fall test where the case is pivoting at the bottom there would still be oscillation and crashing at the bottom of the case. The force waves don't just stop because one part of the case is already on the floor. As can be seen the whole case bounces. Look at the one where the case falls off the bar. it doesn't just hit the floor and stop dead, it bounces.