NHlocal
TreeHouser
http://www.youtube.com/watch?feature=player_embedded&v=TtOS5rV1aPM
Ben posted this awesome heli-crane video.
Two points, changing compression and tension. When craning trees, or gusts of wind are present, things can split more easily... and a tech cord prussic for tying in SRT without crossloading the 'biner--you don't have to choke the stem tight if you slide out the prussic and clip into it.
At the end very end of the video I noticed a tech cord loop on his lanyard. This allows you to choke the stem of the tree without crossloading your biner. This works best with an srt device as a lanyard adjuster (cinch, hh, grigri), as it is a full-on srt climbline, effectively. If you have a steel core flipline with a snap, like me, and a lot of PNW climbers for removals, you can still tie-in the stem on SRT, and be held tight, pull in closer on the lanyard, but not lower-out/ lower away from the choke while under load. This avoids the circle of death.
Do you have any pics of the setup in use, or maybe videos of it being used.....?
Thanks Sean!