I did the SeatoSummit lower strap mod on my climbing spikes. One of the buckles broke due to a thin spot in the stamped aluminum the first time I used the straps. REI exchanged the straps no problem, but I did find more buckles with the same thin spot on their display rack. Curious, I stopped by ****’s Sporting Goods and found several more of these straps with the same thin spot in the stamped aluminum buckle.
So, inspect your gear before you use it, every time you use it! (Don’t assume it’s good to go because it’s new, like I did!)