I’ve got a number of number of multi-gun pistol cases and range boxes, but I rarely use them anymore. I find them a bit awkward, they take up a lot of space and it makes it difficult to haul everything into he range in one trip. If you cut out the foam, you limit the use of the case and I don’t trust un-cut compression type foam to prevent multiple guns from banging into each other. It’s kind of tacky when you have to put old socks between guns to protect them.
Those Case Club cases look pretty nice, but they’re pricy and I really don’t see the advantage. A few of their 24 gun cases seems appealing at first glance, but they won’t hold long barrel revolvers, I really don’t have room to store them and I think I’d hurt myself carrying one!
I store the majority of the handguns I shoot in pistol rugs, so I use those for transport. I have found it more convenient to carry a large range bag that holds all my gear - guns, ammo, tools, hearing/eye protection and target supplies.