Not really much problems, some channels suffer problems in torrential rain. My father in law had the same problem, so I re aligned the dish and his is sorted. Tried the same on mine and new lnb and I have improved the strength and quality, most hd channels are 95% - 100% signal and quality. But some SD ones are 90% signal and 50%quality, notably the welsh channel S4C & sony tv etc.
I tried some of the shotgun cable in the house to make up some short coaxial cable and was shocked on the bad pic quality compared to say a WF100 cable. So I was thinking if this makes that much difference on a short run, would it improve sky, I know sky is digital, but correct me if I'm wrong but isn't the signal between box and lnb analogue? I haven't got enough run of WF100 to go from dish to box, otherwise if try it.
Also what's best? These screw on F plugs or I have these QED F plugs which are solder types?