If I ever ask to hit your driver say "NO!" I will show you pop-up marks on my own just to confirm.I told my son's brother in law, 'if you put a skymark on my driver, it's $600 to replace. Go ahead if you're prepared to buy me a new one'
I'd have to sell my driver for next to nothing and replace it, there's no way I'm letting someone who has potential to damage it try without knowing the consequences