Ok, so for those that remember, I thought I was an 11 D and picked up several pairs of shoes in that size only to realize it wasn't correct. So anyway, one of those 11 Ds is a pair of chili Bradleys that only have 4 eyelets (style 5851) and I liked that version of the NST so much that I ordered another used pair from ebay in the same style / color to replace the ones I'm going to sell. The new shoes are style 2661 and have 5 eyelets. I have no idea what the difference is and I guess it really doesn't matter, just trying to understand if one is an older version of the shoe? Any insight would be appreciated.