and "high security" locks such as Yale and Chubb. The slack curvature and slender profile allows the pick to slide past set pins and through highly restrictive keyways where a standard short hook is too large to do the job.
The "Small half Diamond" acts like a wedge while manipulating pins in keyways that are arranged in a manner that disallows a hook-type pick. The half diamond wedges itself under, and sometimes past the pins that are set too low to get a traditional hook under.
The "Best-Buster" is an altered profile similar to the traditional "snake rake". This rake is effective on many lock types, but is specifically designed for shallow, sweeping key bitings like those found in Best, Arrow, and Falcon locks.
The "Twin-Peak" is most effective on the withdrawal stroke of the makeing it one of the most effective rakes available. It differs from a traditional rake in the way it functions by using a "ramping" effect similar to bumping.
This Set has changed over the time to improve its overall effectiveness.
As more information and new methods are developed it only makes sense to change the Kick start, Expansion Set and Grad to fulfill their rolls as steeping stones in developing a great picking set.
To do this the kick start needs to have the 4 most practical picks, then the expansion and grad must build on top of that set.
