I would have no issue letting a friend use my clubs. Most likely scenarios would includes things like desire to test the clubs or something happened to his/her clubs. I have one playing friend who loves to hit my driver. It's kind of hilarious because she's about 5'4" and 120 lbs. But she hits it well. If I get a new one, I might as well just give it to her for a week to get it out of her system.