LeeRM wrote:Some of the master locks have the anti-bump driver pins. This combined with a very short key pin can make it appear like the pin isn't there. If this is the first binding pin, frustration will commence.
Have a few different sizes of Master padlocks keyed alike but the large "Commercial #5" gave me fits. Got to where I could rake it every time no problem but still couldn't SPP. I did notice that the first pin was disappearing what seemed like too much like I was overpicking it. Finally saw LeeRM's post above. Now in just no time at all I am SPPing it every time. Don't know if has the anti-bump driver pins and short key pin or not as LeeRM said but it sure looks like it might.