@detroitdad - The dividers are wedged into the slots pretty firmly but they'll come out just fine with a little tug.
Don't worry about damaging the foam... If the foam gets damaged from regular use then that's a really important piece of feedback that we'll want to know about. So please put it through it's paces and let me know if there is anything that doesn't hold up or work out very well.
Yes the depth of the chest part is to accommodate taller objects. You're welcome to pull the foam out of the top and see how many racks fit... There might even be enough room to stack them .. which would effectively double the storage capacity.
Lastly, when I first approached you to review, I was kind of hoping you would use it as you typically would in your games. So if you would rather not use the foam or the pull out trays, do what's most suitable to your needs.