Help me pick a rolling camera bag

The new 4 wheeled roller from TTP looks awesome but the inside volume is almost 30% smaller that the Airport International - which has the exact same exterior dimensions - about 30 liters vs 21.5 liters interior space...

Here is how my Airport International was utilized a few years ago but I now have it configured to hold more lenses with the flashes and lighting stuff in a separate bag...

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Cheers...