Recently, i've been interested in lockpicking so i went out and bought myself a Master 140 and a 5piece kit from southord. While the southord kit was shipping, i tried to pick the masterlock with homemade tools(tension wrench and half-dimond pick). it had origonally taken me about 10 or 15 mins to pick the lock and after experimenting with different shaped paperclips to pick with and using wd40, i seemed to find a "sweet spot" when i manipulated the 2nd and third pins in a certain way, and it very suddenly became extreamly easy to pick. i had also used this lock to practice bumping on if this makes any difference , but only for like a day. is this the lock wearing, an especially good tool shape, or me getting better?
Here is a video of how easy this lock has become to pick:
http://www.davidmschindler.com/masterlock140.mov