I simply refuse to use the cases like PELI.
WHY ?
Because they LOOK HEAVY, airlines have been clamping down for years on weight, if it looks heavy they will simply want to weigh it,
not very often you can get your carry on to less than the standard 5kg
so if it looks light and small then they dont ask to weigh it.
I use Lowepro soft bag's & Rucksac's, And have yet never been asked to pop my bags onto the scales.
When i used an Ikelite case, they were always hitting me, and often it had to go in the aircraft hold.
another trick I use is to wear a really baggy pair or Pants (trousers) like combats with lots of pockets, and off load all my camera lenses into my pockets prior to check in, just in case they wish to weigh my bags.
I dont like baggage handlers throwing £6000 worth of MY camera equipment around, I like to keep it with me that way it enjoys the journey just as much as I do, & i know its going to work when i arrive at my destination.
Less delicate items such as Arm's, Cables, Ports Etc, goes into my checked luggage packed into HARD plastic storage boxes to protect it.
regards
craig