I use arborist throw bags for portable operations, but I cannot get them up 60-70 feet high, only 20-30 feet. For semi-permanent installations of wire antennas

I use arborist throw bags for portable operations, but I cannot get them up 60-70 feet high, only 20-30 feet. For semi-permanent installations of wire antennas in tall trees I use a pneumatic tennis ball launcher. I can put a piece of 50 pound test fishing line over the top of 80-foot trees.