I use the same cases for photography equipment. I use a glue gun to reduce the lose of foam blocks. For my drone, I bought the expansion kit, however..Same thing I did, my only gripe with the HF case is how easy the little squares you want to keep fall off. I used it today.
Thanks for posting back, will get it as well, if they have it eventually available on the Canadian siteI did get the case and i like it. The front clips have a middle push in and then you can lift the snaps. Everything fits well and snug which is good from a fall out and raddle perspective. It was $ 99 on amazon with a guaranteed return for me. I'm keeping it.