As an installer - rule for LOS is 5 degrees bubble around each Sat, some techs including myself may squeeze that lower but depends on the situation. If the tree looks really old or near dead and I'm say 2 degrees over it I'll put it in cause I don't forsee it causing issues down the road but if its 2 degrees say over something I know is fast growing right before spring then nope. You can't just put it on a meter cause you've already done half the job putting in the satellite to hook the meter too and that takes time, and if you can't get nothing and call a NLOS then the tech just did a bunch of work for nothing so nope NLOS and move on to get paid for work you really do properly unless you wish to pay the tech out of pocket to set that stuff up and test. Techs get paid AFTER the job is closed and done not during it hour by hour.