I have some lag hooks that I'm going to install in my ceiling joists in the garage. They're rated for 250 lbs and threaded so I can screw them directly into the wood. I'll be using this to hang some exercise rings for the family to use.

My coach has used them in a previous gym and he's confortable w/ their use and my use will be less strenuous.

My question is this, is it OK to drill a pilot hole to ease screwing it in? Or will that weaken the attachment? It's about 2" long, maybe a 1/4" in diameter.