I had a one lung experience on Nov. 10 of this year. Had a large BB come in close to my tree an didn't seem to want to move out only 5 yds or so. I kept telling myself aim LOW LOW LOW. Upon release my arrow was sticking almost straigh up out of back an looked like maybe 10"of pentration. I was using a 48# osage selfbow with a cane arrow an stone point all made by me, right away I didn,t like the looks of things but to late now. I had a very good visual for 50 yds an he left at a erratic run, arrow hitting all kinds of brush. I waited about an hour an started after him, figured not to have much blood because of extreme high arrow an no prior experience with stone, started tracking by leaf an track sign, I noticed almost immediatley that one hoof spleyed extra wide every time it hit the dirt, finally at about 40 yds had a little speck of blood an this kept getting slowly better, every overhead branch that hit arrow would show blood splatter. Very errattic trail, believe arrow hitting on brush caused this. At 150 yds found tail part of arrow an lots of blood, deer fell an broke cane arrow , got up an only went 12 yds or so an was dead. Stone point went between ribs an down into lung 4 or5" Deer had blood on mouth an nose so assume filled up an suffucated. What impressed me the most was the strength of cane arrow, never broke until deer feel on it, also point was hafted with pine pitch glue an sinew wrap an was still tite in notched arrow, Hope this helps ya some. Bob