Thanks for the input JAFO. I went with the 45 degrees down angle for the Cap Hat Radials. Read an article a ham did after doing a good bit of tuning work with the new 500. It was something he suggested doing. I set mine up at 22' 4.5" 'cause I operate above 27.195. SWR's are 'bout 1.25:1 or less the higher I go. Great info, thanks again. 73's