Hi...interesting question, but I do not use the base shaper. I bought this bag on ebay as brand new-never used. She said it was a "sample bag," which I took with a grain of salt. The bag is Made in France and date code indicates it was made in the 12th week of 2012. The leather trim looked crisp and pristine when I got it and the shoulder strap still had the cardboard on it. They verified authenticity at LV. Handles looked perfect and no gaps at ends of zippers. The only issue was that the coating inside the pocket was peeling. I am wondering now if it had been used though, maybe without the shoulder strap since that looked so new, and maybe I didn't notice the corners....I just don't know how I could have missed it. I used it for about 2 weeks straight, at the most, and then brought it to LV. They replaced the pocket for free and I received the bag back after 2 weeks, on Wednesday. I have been using the bag everyday since Thursday, and just noticed the corners yesterday. Now I'm wondering, did I cause the wear, was it there already when I purchased it from Ebay, or could it have happened during repair at LV? So weird....