[TowerTalk] Erecting tower sections solo

[Zivney, Terry]

I seem to recall a thread a long time ago about how Bill, KM9P, put up his towers without any assistance.  But, except for posting where he 
stated he did so, I cannot find any details about how he did it. 
In particular, once the tower section is hauled up with the gin pole
how is the tower section moved up and down as needed to seat it
on the existing tower?

Terry N4TZ