Doesn't work as good with vanes; tried it once with my wife's Blazers and Vanetecs. I've never had it slip in the heat either. It makes it much easier to repair one fletch at a time and you don't have to scrape glue off. I've shot some through hay bales and they came out the other side all intact. Heard of some putting a dab of glue at the front and back for added insurance, but I haven't found the need myself.