Elevating subwoofer about two feet off the floor


Acoustic Sciences Corp recommends elevating the subwoofer about 2' off the floor http://www.acousticsciences.com/products/subtrap

see photo in link above ... has anyone tried raising their subs that high off the floor? Did it sound better?
tweaknkeep
mijostyn541
 "entire house will start shaking including your wife."
Perhaps now I won't need the movie and wine?  
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ptmconsulting said: "Then on a lark, I turned them upside down. Yes, I did place a cutting board on their upturned feet, figuring they would need something to simulate a floor. That's the ticket. tight, precise, invisibly integrated. I heartily endorse anyone to try this and see if it works for you."

Would it not be the same effect if you elevated the sub the distance of the upside down port by setting them on a stand/table/DIY setup with a surface similar to or use a cutting board for the top of the stand? It seems you would end up with the same improvement with your awesome REL sitting upright as designed.