I have a 2 year old AT9 (sidecar) dish, and my 99/103 signals have always been low. D* even called and told me that they'd fix it. They came yesterday, tweaked it, said everything was OK, and left. My Ka signals are still in the low 70s. I don't want to spend the time or money to get a whole new Slimline dish. I'm tempted to just buy a Slimline LNB and try it. Would it work?