Wireless companies have placed their antennas on high voltage transmission towers. I don't remember the voltage, but I believe it was 138kV or higher. The power company installed it and maintains it. They were not going to let the wireless companies employee's work on their towers.
At one time I had a really good reference book that was published by GE in the 1950's. It said the starting PF for small motors was .7, and it was referring to motors up to at least 5hp. Unfortunately, I don't have that book anymore to double check my memory.
Concerning your flicker of 4...