Very nice, I kind of figured that might have been buckeye burl but wanted to know for sure. I have found it is always nice to tell all about a piece when showing! Kind of steel, length, handle material and always show pics of file work!! I suspected that was the purpose of the jimping. I have saw the need to choke up on a knife when the situation calls for it while skinning!! Sometimes things have gotten a bit messy or perhaps you are in a delicate area of the skinning job, either way the jimping will help to get thru those situations!!
You have a design there that will serve its purpose well! Thumbs up!!!