Im sorry but i forgot to add that two of the guys had sirio antennas and when they switched over to the 10k i was able to see atleast 1 s unit of signal increase.Please keep in mind i was using a yeasu 101e and a antron 99 at the time.As im sure you know a real ham radio not an export requires 6db per 1 s unit.A cb is also different. And the guy was maybe 40 miles away by air.Power levels did not change nor did antenna height from each test acording to him.So let me ask you this i have read that the 10k is better for local talking but the sirio is better for dx.Dont you only use a omni for local talking/rag chewing and for dx a beam atleast on cb.So wouldnt you want the hottest antenna for local talking.Also one last thing doesnt the sirio because it is a higher wavelengh create more interference.Have you tested these antennas side by side.What are your thoughts on this.