40 meter beams... dont think you can beat the m/2.... i have one of there 4 ele 40,s up and works great swr under 2to1 from 7.000 to 7.260. also have one of the 2.5 wl 6 meter beams, mine on heavy duty boom. as a mater of fact all the beams here are m/2!! regards wayne k8lee