As the name of this thread implies, the Strider folders are listed as having a total length of 8.5", whereas the Strider/Bucks (the large models) are listed with a total length of 10.25". What, may I ask, is the purpose of the extra 1.75" on the Strider/Buck? By the by, I got my information from the Strider website. I'm just interested to know. Thank You, very much!