I have used SIG Easy Hinges almost exclusivly in the past. They work just fine for me. I would say the ones in your kit should be fine. If you are worried about them try this. Where the hinges are drill a small hole through the hinge on both sides. Use some wood glue and put a round tooth pick in the hole. Break the picks off and sand flush. That will pin the hinge in permanently. good luck.

Mark Shuman