I have never met Bo or Gary Randall, but I've always been under the impression that they made their knives to be used. Of course, I can certainly understand the exception, e.g. the scrimshawed knives by Rick Bowles.
I have some Randall knives and all of them are used, but the the ones I use most are a Model 25-5 Trapper....
A Model 5-6 Camp and Trail....(Bradford Angier style)
And a Model 21 Little Game...