Does anyone use wood for vibration control?

So you think the physics books are incorrect, or I am incorrect in quoting them or both or what?

I don’t think you looked at physics books. I think you’re trying to define things to suit your purposes. 

Hi Geoff i just had a great listening and tuning session just now while commenting what i expreicned to Michael on what i did. 
Just to share what I did just now, I tuned the side walls and my floor by applying few pieces of wood beside the speaker stand and that brought out amazing image and better layering of my stage. I tensioned one of the bolts of my  front wall and that brought out the stage more forward towards my listening spot. 

Now since you are a man of science and seems to be an amazing physicist would you care to comment on what is happening to my setup and tuning ? 

Perhaps if Victor Von Frankenstein had better tuned his monster's neck bolts, the creature wouldn't have sent out such bad vibes.