I'm sure you will love the new sound. Can't remember reading posts from anyone who wasn't happy after drilling. I had to check with my dealer first because here in my neck of the woods they are very strict on and work being done by the owner or for that matter anyone other than the dealer. They will cancel the warranty so fast your head will spin. It's even printed in the owners manual that any work done by a non-authorised Yamaha Dealer will void the warranty. I certainly won't risk that. Good luck.