Well, I finally managed to get around to testing an old Primestar dish with the 105(and 121) on my 501 receiver using an SW64. With a 35.5" x 26.5" inch dish, I could barely get 70 on the 105. I just switched it to a 39.5" x 29.5" dish, and now most trans are running 80-100. I used the same LNB on both dishes. I had some problems with the switch test until I checked the SD box. Then, the switch test went from 38 to 50 tests, and detected the 105 OK. Trans 1-19 are 80-100. 20 is 65, 21 is 48, 22 is 0, 23 is 60, and 24 is 80. I was really suprised that the signal increased that much with the larger dish. The 121 #s went up some as well, but is actually in line with the 105 sigs now. So, I guess that the bigger the dish the better with the FSS locations. Has anyone else gotten any similar results?