the stuff I've got from Ks seems to be more reddish in color than my oklahoma osage. thats the only difference I ever noticed. that and when I went up to the race track in topeka I couldn't drive more than 12 feet down the hiway with out seeing another osage tree! the ratio up there is something like 50% osage. in fact the second time I rode topeka I took a saw and ax with me
. thats how I found out how colorfull it was up there.