I've used hot melt for years on carbons and carbon composite (full metal jackets). I use both Ferr-l-tite and hardware store hot melt for metal. What Big Jim says is true, and since he's done the research, has a good product.
Clean the shaft and insert with alcohol, acetone, or similar product first. I apply most of the heat to the insert to install, to the field point to remove, but also heat the shaft some with a propane or butane torch and have yet to have a problem - in my experience. Just be careful with the heat as you can damage the glues in the carbon.