Wow 2mm is pretty good. Link to it?
Idea: use a big ass mast mount to mount it to the side of your house, and get it up even higher. Something like these:
Skywalker SKY32815 (1 Pair) 12" Heavy Duty Wall Mount (SKY-32815) https://www.amazon.com/dp/B008USJ1CW/ref=cm_sw_r_apan_i_0N4K2ENZ7KT53GCWWD79
Should get it out past your eaves. I'd use at least the bottom 5-10 ft as your anchor to the house. So you get the height of your house (25 ft?) plus the height of your mast (25 -10 ft) is 40 ft :). Basically what I'm doing!