Does anyone on this board have any experience with "Airtabs"?

www.airtab.com

I have been in touch with the company and the site does show mileage gains and stability when towing.
I am trying to determine if it is worth putting these on both my cap and on my trailer.

Thanks in advance

 

I have a hard time believing that.

But this comes from a guy that hasn't seen any real MPG improvement from putting on a bedcover. Maybe my foot just gets heavier.

 

skeptical x2