I have been running the Larsen dual band and works well. The build quality is very good. The staff flex is very high meaning not real stiff and moves around a lot with vehicle and moving wind loads. One should really adjust this antenna with an Analyzer for the 70cm band because the 70cm band is at the bottom of the sharp match curve that the band is centered on or you could miss it and have high SWR on 70cm. If the SWR were looked at with a visual recorded SWR display plot, you could see this. Good luck.