Did the bottom half today and all went well (330kg and about 10m long). Hooked up a 4 legged sling and a metal cable sling just incase one broke, at the end of a 180' sling, about a third of the way from the narrow end hoping it would weathercock... But it never. Stayed quite square on and from about 70-80kts started to swing left/right. No spinning at all..... Was like flying a huge survey ring - pulled the nose right down to a 300kt attitude. Once I put it down and flew to refuel, felt like I was looking at the sky and had to keep pushing the cyclic forward...
Took me all of 1:45 to get it there.
Thanks for all the advice...