Never had a problem flying with others, if you look at my avatar picture I had these drones at the park and another guy had a Mavic pro and we flew together all day and even passed the controller's back and forth to each other without and problems.
I have one of these for my Typhoon H and it comes with no foam on the inside at all, its made for the foam insert that comes in the H box. I guess you can buy some type of foam for the inside of the pack and make it work.