On a quartering away deer, behind the ribs they didnt pass-through(295 fps with on 415 grains). On a doe I shot an hour later with a double lung, i did get pass-through with the arrow sticking into the dirt about 6 inches. Both shots left a very light bloodtrail. Double lung shots, should not leave a light bloodtrail IMO.I never did find the buck. I did stumble accross the doe who ran about 100 yards, with no blood for the last 30 yards.
So you stuck one didn't know what type of hit you got,stuck another one an hour later, and were lucky enough to stumble across the doe?
Sounds like your set up more for speed the penetration.