Good product requiring minor fitting - Wilson Combat Ambidextrous Thumb Safety, Tactical Lever

The ambi safety on my S&W 1911PD held up for 15 years before breaking while shooting at the range. It's been my duty pistol since new and has had thousands of rounds fired through it with ZERO problems until a couple of weeks ago. I ordered this Wilson Combat replacement due to their reputation, quality, and personal experience with their products. Reading some reviews on it said that it required some minor fitting. With so many versions of the 1911 being produced, it's no wonder that it isn't a complete drop-in piece. Once I began installing it, I understood why. I needed to lightly sand the axle a little for proper fit and smooth operation. It also did not fit up into the sear and I had to file it to allow it to engage the safety. Once that was accomplished, the safety works perfectly, feels solid, and should easily last the rest of my career and then some. My biggest complaint is the shipper used by Optics Planet (DHL). They are slow and don't have very thorough tracking information.