I just upgraded my Checkpoint frame from an SL to an SLR so now have a downtube storage to use. It came with the roll, so I packed that as they recommended. I do want to stick in a few other things like a proper multitool with a chainbreaker. However I need do something to prevent it from falling down into the bottom bracket area. I saw the suggestion above about bubble wrap. I initially tried stuffing a microfiber towel, but of the ones I had one was a bit to big and the other one kind of small, so I was worried I would lose it down in the frame as well.
Also, the piece of blasket on the back of the removable panel looks like it was designed to stick a very small multitool into it. Can that piece be removed or exchanged for something else? I tried taking it off but then then one of the water bottle mounts won’t hold the screw because it needs to be threading into something.
Curious to hear what other peoples creative solutions have been.