Had that worry about 123w while I was setting up a dish for a friend in Brooklyn. I wasn't accustomed to seeing 123w that close to the horizon It was about where 148w is where I live in New Orleans.
Tree Issue?
You bet.
I had a heck of a time with 119, it is so low to the horizon here in Boston.
123 is a major pain.
True, here in New York my Primestar dish pointed at G10R looks as if it's pointed at the ground. At least it keeps the snow off it.