This is a good thread. 👍 I recently had a tough situation, while changing my tires & tubes onto different rims. The whole issue was caused by Slime inner tubes, which didn't want to deflate all the way, due to that sealant jamming up the valve stem. 🙄🤔 I finally gave up on one, and used my spare. And couldn't deflate that tube any more, even outside of the tire & rim, to store it in my pannier as a spare. 🙁

Anyways, there's something else to complicate the issue even further. 😁😉 Another good reason to always carry a spare tube or two.