I got caught with my new Estrela MM in the rain. I got the bag as a gift late October and it happened only a week later. I can definitely see the spots, more noticeably in 2 of the 4 corners. I am wondering if they will blend in as the bag darkens. I also own the LMB 3 step kit but I have not treated this bag with it. It's not terrible, but I notice. It's my first brand new bag with so much vachetta. Before receiving it, the only LV bags I owned were the DE neverfull, mono mini pochette and a mono alma but the alma was preowned with great patina already. So needless to say I am pretty clueless. Given the choice I would have picked a bag with less vachetta, but it was a gift.