Mr.Bowles first let me say I realy like your knives and hope to order one one of these days.
As for your question
I like a blade 9 inches long, reasons, thats what im use to, I can chop and clean game well with a 9 inch blade.
Steel,I like a carbon steel/1095/5160/52100,and the thickness 1/4 2 inches wide.
As for the sheath for me it doesnt matter I like kydex and I also like the way leather looks,for a big blade I feel you can use a leather sheath to strop your blade.
Handle material,I love micarta.
And the grind,Ive used deep hollow grinds and dont find them to chop as good as a flat grind,for me I dont get that deep chop like I do with a flat grind,Also a flat grind it cuts and chops well where the hollow cuts very well but doesnt chop well.
Sorry if I sound like a idiot but I got kicked in the head about 2 hrs ago by a bull and am a little dizzy
If wondering how I got kicked in the head,im a bullrider and it wasnt the first time ive been kicked
