I have a deforest pick

I am thinking that IF I had a straight version of the deforest pick (because it has such a thin arm and small half-diamond head) ... that it would be perfect for picking these particular schlage locks.
I realize that I COULD just pick it by turning the pick slightly in order to fit in the keyway better, but its awkward for me to pick this way.
I am thinking about cutting down a LARGE half diamond pick that i bought that I really dont have a use for. Or a "W" lockpick ( http://www.spyemporium.com/images/products/st-mp-10.jpg ) I also recently bought that i have no idea what it is used for because it is so large. What IS it used for exactly?
So what do you think?
