I agree with teleview, leave the J-pole on the outside of the beam. Based on your TV Fool report, even with 2-Edge signals you might get decent reception from there with the ANT751. As always, higher is better so if you can move the J-pole up or get an extended J-pole like this;
http://www.amazon.com/Distributed-By.../dp/B00EI8LYJQ
You might just be able to get good signals, that location is close to clearing the nearby building and at the outside beam you are almost clearing the tree. Aim the antenna up (toward the sky) about 5-10deg to maximize reception.