I have been wearing New Balance shoes for the past 15 year or so. As someone who needs a wider tennis shoe (10.5 Wide), I have found your brand to offer the best shoes with regards to comfort, fit and balance. However, the past three pairs of your shoes I like the best, 608 V2, have all developed the same problem long before the top or soles were worn. I've included photos for your reference. It would appear there's something about your manufacturing process that lends itself to this issue. After a couple of months of wear the sole separates from the upper shoe on the toe. At that point I have no choice but to go out and buy a new pair. I've replaced the defective shoe with another 608 V2 because I like the shoe very much. I don't know if I'm expecting you to do anything, but I think you should at least address the issue in your manufacturing process. At 66 I don't do anything unusual outside of normal walking, so I believe whatever adhesive you are currently using is simply not working very well.