I had my service call today ($49 fee waived since I'm a loyal customer with no service calls in the last 12 months). First he replaced the existing 5LNB with a new 5LNB (non-SWiM). I asked about the non-SWiM 3LNB, but he said that wouldn't make any difference, which seemed to be the consensus here, so I didn't push him about it. Then he realigned it, and then he replaced the grounding block and put all new ends on all the cabling outside that connects to the grounding block (8 ends altogether). After all that, my signal strengths are not much better. The 99c TPs are now all in the low 90s, but both 103ca and 103cb are still in the 80s with 103ca TP 17 in the 70s. He then went back up and realigned it again to no avail. Both my HR21s are given me similar results, so I don't think the problem is with any of the tuners. I guess I'm just not destined to have all TPs in the 90s. I felt bad for the guy: it's about 90 here today and he had long heavy looking cargo pants and a heavy looking long sleeve dark blue D* shirt and a hat - I would have passed out on the roof!