I'm not familar at all with 118 as I don't have a + dish. But are you having dropouts on your HD locals? If no issues then I guess you're fine, but those numbers sound very low to me.
I did my own install of a 1000+ and had lots of difficulty tweaking it for the 118. I've never been able to get above 60 on the 118, but it seems be very stable. I've never had any dropouts even on the transponder where I was getting a max of 54. I wonder if it is more resistance to dropouts due to the different technologies used???