I was also using Sharp for long time, But in some conditions I get one D2H lnb (White one with 0.1 Noise Ratio) and it gave me good results on out of footprints so I continue with that and catch all those 3*E + 7*E + 9*E +10*E etc.
Now you will be surprise to know that some Channels were freezing on Eutelsat-7A then I get one new Sharp lnb and freezing was stopped. I think it depends upon situation & location to location itself plus Hardware you are using mean not only lnb is responsible in increasing or decreasing the signal ,The Box (STB with better & stable TUNNER) + good quality Cables + good alignment of dish Antenna all are equally responsible for good signal. No doubt the quality Hardware matters. thanks