A big thanks Mez !!
In my case anyway......when I was saying below the spine and above the lungs .....I really meant above the ribcage and below the top of the back.....mistakingly thinking that the spine is higher than it actually is !!
But that also means there is a " dead spot" (probably not more than a few inches above a perfect shot) that when a deer ducks and you hit high through the backstraps and through the deer at an angle that doesn' t take out the opposite lung .......then there is a good chance that deer will live to see many more days !!
Since there is a dead spot.......the guilty shooter' s just need to learn not to say below the spine and above the lungs !!