by marso » 23 Feb 2004 8:21
Raking works because there is such poor tolarance in some locks. Basically the shaft is so much bigger than the pins diameter.
When you rake you are either pushing the pins up really fast or they are bouncing up from the chain reaction. Some people describe it as if you were using a snap gun but with normal tools. Also since (say) the middle pin binds, when you rake you glide along the pins and even though the middle pin is not going anywhere your pick slides past it. This is also where the importance of the torque wrench comes in, you should play with the pressure hopefully unbinding the pins that are causing you grief. This is really alot of luck, that is why I like single pin picking.
I have never really thought about it myself it just either works or it doesn't. I have also read a few times where people mention you rake the lock a few times and then pick the binding pins.
Sorry I have not quoted any reference, it is late and figured I should reply. Also I am far from an expert so please verify my ramble above yourself.
Consider me inactive or lurker.