Thanks footloosiety,
I am aware of the practice you speak of. It is strange that it is referred to in the Tower Lowering procedure of the 60m and 50m XHD manual but not in the Tower Tilt-Up section.
I agree that in the absence of proper equipment for lifting the tower, one must resort to best (or safest) practices. The problem with continually adjusting the back guys using the inchworm method (as per manual) from 60 to 90 degrees, is that the crew member doing it must keep his/her head down to loosen and tighten the clamps. The crew member obviously loses visual contact with the tower itself, should it fall down on top of him/her.
As a best practice, I would propose using your method of attaching ropes to the back guys using quicklinks, and standing outside of the falling radius of the tower. In addition, we also measure out, to the best of our ability, the exact length of the back guy wires while the tower is down. We do this by rolling them out to the side anchors, marking the length, then fastening them to the back side anchors. This way, the back guys do not have to be adjusted until the tower is essentially vertical, and the tension is taken off of the winch.
There is then no need to stand under the the tower when it is at 60 degrees as the manual suggests.
Whether using a winch or a hoist, no one should have to risk being in the path of a falling object.