Hello All. My name is rob and i have a question regarding trees. I do hedges and small tree trimming, my question is i have been doing a lot of yardwork on my parents lawn and there is a big pine maybe 4 ft tall. When i was younger my mom trimmed the lower branches about 10 ft up with a pole saw. Now it looks odd because the top part is more full then the bottom part. How do i trim that back without killing the tree to make it a more slender appearence. Thank you.