Depends on what you mean by tuning it? I have hit the ARC easy many times, but still had to fine tune it. Going by the numbers gotten from "Sat Locator Sites", I have hit the mark, but still had to fine tune the dish. My T90 center location all 3 different angles I've used I hit the center lnbf on first try, but still had to fine tune the dish for the rest of the lnbf's.Have you ever installed a dish and hit the target first off without tuning it?
And then again, there are times when nothing but patience, which I lack extremely, had to be used and it's taken from hours to days. But, I have always got it sooner or later. Which only proves I'm not as good at this as I would/should like to be?
Al