I have plenty of stick time on these helo's and although it looks a bit hairy, it's not too difficult. Getting the aim right might be a bit more challenging. One thing for sure, this is an odd and expensive method for harvesting x-mas trees, lol
https://www.youtube.com/watch?feature=player_embedded&v=08K_aEajzNA
https://www.youtube.com/watch?feature=player_embedded&v=08K_aEajzNA