My 580' Beverage antennas consistently hear signals on 160 through 20 that my transmitting antennas do not. If you do it right, you will certainly love how they work on 40. Instructions are at http://www.w0btu.com/Beverage_antennas.html
The W0BTU weblink page is very informative - lots of references and valuable findings !!
Appreciate you sharing this information - thanks again!
73, Rich, K3VAT