When I was younger I hit the Makiwara 100 times a day. A pine tree and an oak where used for gripping and clawing. I used sand to strike with fingers, back hand,and each joint of my fingers and knife hand. There was and still is a piece of granite beside my chair which I take out while watching television once in a while and strike.
I have used dit dat jow but ran out of the good stuff long ago and have lost the recipe for it.
My instructor made me stop at one time because I stupidly punchded the makiwara to much and not only drew blood but exposed the bone. Yep I was an idiot.
Really. Ouch (I actually shivered).