The Slime lite tubes claim to immediately automatically repair any puncture of 1/8th inch or less, and they are reasonably light in weight. They will also last for two years before the slime becomes ineffective. I believe the lite version of the slime tube is new. Has anyone tried them yet, and if so, how are they doing. I personally do not plan to use them, because being a nutcase, I even run Ti pedals to save weight, but I thought it made save my girlfriend some alongside the road flat repairs if I put them on her bike. Thanks for you input.