Hi Quiet bear,
Gerber was being run by Jim Wehrs at the time. (Now of Lone Wolf Knives). Jim and Doug (Hutchins) approached Spyderco, discussed licensing, signed a royalty agreement and paid Spyderco regularly until the patent expired. They selected the "bean shaped" hole to begin establishing their own identity with a hole shape. Once the patent expired, they continued using the same hole shape.
I was pretty easy to identify the EZ out in a movie with deNiro because of the shape of the opening hole in the folder.
sal