ok i have an idea of how to use them. but no exp with them. i just got one to fill in paint chips in my electric guitar. the wood is getting soft at the bottom edges from being exposed. so you heat the tip of the stick up till its soft then rub it in pretty hard where its chipped? then scrape away all tha excess smudge with a plastic card or something? thats the main just of it all right?? i really don't wanna screw up my guitar so just double checking to see if anyone here has used em before.