Sorry I only have speedy b25 in mono so no pictures of DE but I've seen alot either at boutique and
fashionphile pictures and unfortunately I think the wrinkling is just luck of the draw. Many monos have them too but with the coating of the DE, I think the wrinkles cause cracking of the coating which may be the reason they got rid of the coating all together. I don't think it's wear and tear necessarily and personally, I don't like it on the sides of bag but don't mind too much on strap bc it'll bend and get used over time.
My personal experience regarding the 30 day return policy is that if something is not to your satisfaction, you can still return it within 30days even if you use it. You can't use it and then return it without cause but if something is wrong with it while you use it, you can still return it.
I've been on the fence about getting the speedy b 25 in DE bc of the leather change. What I want to know is does the new de leather get soft with use like mono?