[TowerTalk] Best way of getting a line over a tree

[Eric]

Hello,

I know this is an age old question.   What is your best recommendation 
on getting some ropes in the tops of my 80 - 100 FT (25 - 33 M) pine 
trees ?   I have heard a sling shot or bow and arrow can work.   I have 
good access to the trees but there are too many trees to try getting a 
balloon supported line over.

Thank you,

Eric N4HGZ