Here's mine in my small croc phantom. I ordered the insert for the mini so I could slot files in the extra space outside the insert, and it's worked out quite well.
It's super light and durable.
One thing phantom lovers should note tho, even a smaller insert prevents the wings from folding in. If I wanted to carry it wings in with the same items I'd need to remove the insert.
Love the felt color! Is it pink or burgundy?
That's a smart great solution, just order 1 insert for Mini and Phantom. You can just take the insert if you want to switch between mini and phantom. Thanks for sharing!