Most common Tubliss problem is grabbing the liner with the tire spoon when removing the tire, and damaging it if you do not realize this and stop. This is because the liner tends to stick quite well to the inside surface of the tire even after the inner bladded is deflated, especially when using slime. There are tricks put its still a PIA with some tires. I'm working on a special tool to safely separate the liner from the tire without ruining it. Once the liner is free of the tire it retracts into the drop center far enough and is no problem as long as your tire spoons are clean and free of burrs and nicks. Keep them clean and smooth and you will have no problems.
I really like this system, and will not go back to tubes. Plus, if you have ever talked to Jeff, he is a model for customer service. Mousses are just too $$ and too much work for me.