Ghosting a hash hit

What are your thoughts on ghosting a hash hit? Whether it be bho from a rig or some crumble from a pen, big hits or small.  Personally I like ghosting hits from my hash pen.  
I know it's pointless with flowers, maybe even harmful, but I feel like ghosting hash is more worth while.

 

 
I know that's the case with smoke from flowers.  But I tend to disagree when it comes to this.  The smoke is almost as pure as the hash before combustion, why do you think reclaim is so much better than resin from a spoon?  Same difference, I don't see why your body would have a count (I've heard 3-15 seconds for holding your hit in) and just stop absorbing at a point.

 

I'm not saying it takes longer to absorb, I'm saying there is more to absorb so you might as well hold it a little longer and reap the benefits.

 

 
 
It could start 'offing' brain cells, but your still absorbing thc past 20 seconds

 

 
 
ehh I guess it's easy for me not much of a chore, unless I'm trying to hold in some monster bong rip or something.
 
So these science nerds you guys are talking about, did they publish this work? thats usually how spitting facts like that works, you gotta back them up.  
 
If this were the case, then the smoke you blow out has virtually 0% THC content compared to when you inhaled.  That just doesn't compute.  Show me the science.

 

 
 
Who, and was it with hash?

 

 
 
I wasn't referring to what you said, I just suck at quoting.

 

 
Only 25 years or so....