You should definitely waive your right to them. Adcoms will say they won't care, but it's sort of an unwritten rule...or at least I thought so.
Even waiving the right is no brainer. You can waive the right but still has access to your recommendations from your recommenders. Waiving the right just give them assurance that you can never get an access to recos after you are granted an admission. But if you are denied admission who cares about what your recommenders had written.
So waiving the right does not guarantee that you have not seen your recommendations. For me, not waiving the right shows how curious I am to know what crap my recommenders have written...