That thought has run through my mind a hundred times.
Should I settle for good enough signal, or try and get just a little more?
Sometimes you lose what you have currently, but if you are persistent and patient, you can get all that back and more.
It is always worth the extra effort to tune the dish to get as much signal quality as you can possibly get. When you are finished, you can honestly say that you have tuned it as far as you can and there is no more gain to be gotten.
That is a good feeling to know that you have put all you can into it, and the rewards are worth the effort.
Just my opinion,